Product description The Monitor consist of a special Bluetooth connector (S-BC), which delivers, in combination with the Votronic solar charger (MY2013) with the LCD solar computer S, or with the smart Shunt with the LCD battery computer S or the VPC Jupiter, all the information from your monitor to your phone. The corresponding app for Android and IOS is available in both stores. Connecting the Bluetooth module S-BC is incredibly easy. Simply use the included cable to install it between Votronic solar charger and LCD solar computer S or between Smart Shut and the LCD battery computer s / VPC Jupiter. The device has two in- and out-puts, this way you can connect 1 solar charger with LCD solar computer and 1 Smart Shunt with LCD battery computer or VPC Jupiter simultaneously. This way you get all the information on charging, voltage, solar-status, etc. right on your phone without any trouble. Additionally, the app saves the most important data and displays it in the app for extended periods of time. You can even export these files for analysis purposes. This Bluetooth module can just as well be installed after the fact, so whenever you are ready! Technical specifications:  Typ Bluetooth Connector S-BC  Measuments (WxLxH) in [mm] 75 x 47 x 24  Weight in [g] 37  Certifications CE, E-Prüfung (EMV/Kfz-Richtlinie)  Surroundings: Humidity: max. 95%  Scope of delivery: Manual, 2x Cable 6-point connector 1 m long The Bluetooth-Connector S-BC is compatible with the following devices: VOTRONIC Solar-charger in SR- and MPP-technology from 2014 (serial number 14Vxx.xxxxx) Battery Charger, Typ VBCS-Triple LCD battery computer S with Smart-Shunt VPC Jupiter with Smart-Shunt Energy Monitor App via Bluetooth-Connector S-BC        Compatible with LCD-Batterie-Computer S and VPC Jupiter with Smart-Shunt    Compatible with Votronic Solar-charger(SR and MPP) from 2014 with LCD-Solar-Computer S    Solar- and battery-Information thanks to a shared module (Dual-Mode)    Plug & Play    Upgrade any time    Compact form-factor and minimal energy consumption    Connection via Bluetooth 4.0 (2,4 GHz)    Range up to 50 m    Free App (Android and IOS)    Export CSV.files for analysis Android from Android 5.0IOS from iOS 10: iPhone ( 5) or iPad (3. Generation)

OptiMate Solar DUO charges and maintains ChargeSaves dead batteries from 4 V with its unique pulse charge.The fastest charge is delivered as the "intelligent charge control" selects between pulse and continuous charging depending on sunlight strength. Intelligent maintenance continues the next day if the battery has maintained the charge overnight, otherwise the program returns to the OPTIMIZE step. MONITORINGBattery status is displayed every 3 seconds. Ready indicator for STD, Hi-Performance AGM and Lithium LEP batteries. Draws less than 0.5mA during monitor mode.Automatically switches to CHARGE when solar power is sufficient. MOUNTINGThe OptiMate DUO charge and monitor controller is separate from the solar module and can be mounted near the vehicle or battery for easy tracking of charge and maintenance progress. The solar panel must be mounted and angled to receive direct sunlight. The range / distance between the battery and the panel is 315 cm / 124″. To extend, use OptiMate cable extensions O-03, O-13 or O-23 and insert them between the solar panel and the OptiMate DUO charging monitor. Application noteFor further application information please refer to the product data sheet

Battery recharging & charge retention Perhaps this situation sounds familiar to you: You are standing on the beach in your camper and leave the car radio on for a long time or open the door frequently. Suddenly, the vehicle battery management system reports that the (starter) battery is running low and the radio switches off or the battery needs to be charged. This is often caused by high power consumption by the vehicle radio or vehicle control systems, which are active for a while every time the door is opened and consume a relatively large amount of power from the starter battery. While all VOTRONIC mains chargers, solar charge controllers and combination chargers have a power-reduced auxiliary charging output in addition to the powerful main charging output, which supplies the starter battery with a defined trickle charge, many conventional devices unfortunately do not have this at all.This can be remedied by a so-called stand-by charger. Charging technology at the highest level The battery is the central element of a vehicle's electrical system. It requires the greatest attention, maintenance and care and, above all, it must be charged correctly. Modern lithium (LiFePO4) batteries have a significantly higher open-circuit voltage than starter batteries (lead, AGM). When using simple, unregulated and uncontrolled standby chargers, this leads to the complete discharge of the lithium supply battery. For this reason, the Standby Charger (item no. 3065 or 6065) is unfortunately not suitable for these batteries. The VOTRONIC StandBy Charger Pro, on the other hand, has an adjustable undervoltage limit at the input. Charging is interrupted if the voltage falls below this limit. This means that it can be operated on a modern lithium (LiFePO4) battery as a supply battery without any problems and without running the risk of draining it completely. Charging converter for recharging and charge retention of the starter battery IU charging characteristic Adjustable end-of-charge voltage of 12.5 - 14.5 V Upward and downward conversion from input to output voltage possible Also works if the voltage of the battery to be supplied is lower than that of the battery to be charged Input-side adjustable switch-off threshold of 12 - 14 V prevents deep discharge of the battery connected on the input side Suitable for lead, gel, AGM and lithium (LiFePO4) batteries on both the input and output sides High output current of max. 8 A Passive cooling without fan Two independent 12V control inputs: "EN" (enable), to activate "DIS" (disable) to deactivate Standby charger can thus be switched on externally via switch and switched off, for example, by D+ while driving 2 LEDs provide information about the operating status Safe to operate due to built-in overheating protection Dimensions (WxLxH): 105mm x 71mm x 25mm Weight: 92g

Battery box with various connections, AGM or LiFePo battery In the 21st Century modern technology is everywhere, even off-road and off the grid, but more often than not there is no power when you're out and about on some trail in some country.One option is the classic cigarret-lighter as a power source, but in using this frequently you risk decharging your battery to a point where it won't start your car anymore. Another option would be a generator, but those are loud, impractical and noisy. To solve this probem highly portable powerbanks were invented, but for a multiple day long trip a small powerbank just won't cut it.So, what if you had a lagre but portable power bank? One you could simply charge, even off the grid, maybe with a solar panel? And one that is heavy dut enough to endure week long trips and years of use ? Hold on, that's exactly what we did! This compact, but long-lasting Powerstation (33Ah / 35Ah) offers a cigaret lighter-output and two USB-ports (Typ A: QC3.0-Port - Typ C: QC4.0-Port, in a roubust shell. It can simply be charged using our solar panels by Optimate.LiFePo4 batteries – with their lithium iron phosphate cathode material – are perfect for running your camping or work utilities on the road, especially in conjunction with our mobile battery boxes. Unlike your conventional AGM lead-acid technology, the lithium battery combines vastly superior charging/discharging qualities with extremely low weight and small volume, respectively, and a long service life. LiFePo4 batteries tolerate deep discharging without problems, unlike AGM batteries which will suffer irreparable damage when repeatedly discharged beyond 50%. Unless you require the greater tolerance for extreme cold in AGM’s, you should definitely consider the higher initial costs of LiFePo4 batteries and compatible chargers. Enormous weight and space reductions, the long life-cycle and the hassle-free charging and discharging of the battery are strong arguments for the investment. And last but not least: LiFePo4-technology is extremely safe. •    robust shell•    portable design•    comfortable handle•    33 Ah (396Wh) AGM brand battery / 35 Ah LiFePo battery•    20 A car-fuse•    2x USB-plug (Typ A: QC3.0-Port - Typ C: QC4.0-Port)•    1x cigaret-lighter (out)•    1x SAE junction box for charger (charger not included) (in)•    1x On-/Off-switch •    simply plug in and off you go Please note the legal information on batteries HERE. For certain types of batteries, we are legally obliged to charge a deposit.

Banner's Running Bull series is the perfect battery for any offroad vehicle. With its modern AGM (absorbing glass mat) technology, the Running Bull offers a wide range of features tailored to the 4x4 market The battery acid is bound in fiberglass wool - preventing it from spilling, even at extreme angles The limited self-discharge makes it perfect for vehicles not in use every day The battery is cycle proof, allowing it to be charged and discharged even more often than a regular car battery, lengthening its lifespan Even hour-long gravel roads and all the vibration that comes with it do not affect the functionality The battery case is sealed, thus there are no vapors and an installment inside the cabin is possible The battery is deep discharge proof, allowing it to be discharged for an extended number of times whereas normal batteries would suffer after only very few of those instances It is also capable of high currents allowing it to provide electricity fast and with high voltages without sustaining any damage! This is especially useful when operating a winch or a large entertainment system Even in low temperatures, the battery will deliver up to 900 A, this way you do not have tomorrow whether your 4x4 will run or not. Allowing for carefree use even in times of high tech interiors.  Depending on the desired capacity, mounting spot and configuration you can choose from a variety of options to fit your needs. Concerning the Defender: It is possible to mount any of the battery models up to 105 Ah underneath the driver's seat. When choosing a two battery system it is even possible to mount two with the capacity 80 Ah each - that's why we recommend our 160 Ah dual battery system, shipped ready to install with the amount and our intelligent battery management system. If one really wanted to, even two 92 Ah batteries could be installed underneath the seat, but this is a very time-consuming process and we do not recommend taking this approach. Technical specifications: Article Number Capacity Voltage Coldstart Dimension Technology BARB-070 70 Ah 12 V 720 A CCA 278x190x175 mm AGM BARB-080 80 Ah 12 V 800 A CCA 315x190x175 mm AGM BARB-095 95 Ah 12 V 850 A CCA 354x190x175 mm AGM BARB-105 105 Ah 12 V 900 A CCA 394x190x175 mm AGM   Please note the legal information on batteries HERE. For certain types of batteries, we are legally obliged to charge a deposit.  

MPP Solar-Regler  Please note that the solar charge controller can only be used with solar panels up to the maximum power rating (Wp) and below the maximum allowable voltage (Voc) may be used. The controller is not intended for an input-side connection (+/- solar panels) of wind, water, fuel or motor generators, power supplies, batteries or other power sources. The MPP solar controller for high-quality motorhomes, caravans and boats. Votronic solar controllers of the "MPP" series (Maximum Power Point) with “IU1oU2” charging characteristics are connected as a link between the solar panel (s) and the battery (s). With MPP technology, the controller automatically determines the maximum power output (MPP) several times per second the solar modules. The excess voltage of the solar module is transformed to a higher charging current for the battery, (realized by high-frequency switching regulator technology with high efficiency). The gain in charging current is used for shorter Charging times taken care of and for the best possible use of the solar system. The MPP solar controllers work fully automatically, are maintenance-free and offer the following functions: MPP charging current increase compared to conventional controllers through the use of the latest controller technology (microprocessor) by 10% to 30% (efficiency> 95%). The performance plus is particularly evident in the cooler seasons and z. B. in high fog, lower and diffuse lighting (overwintering). For charging lead-gel, lead-AGM, lead-acid batteries or LiFePO4 complete batteries (with integrated BMS, Balancing, safety circuit and approval!) Of the specified nominal voltages and the additional supply of an Consumers connected to these batteries in permanently installed systems with the specified battery capacities and charging programs. The charging voltage is free of peaks and regulated in such a way that overcharging of the batteries is impossible. Two battery charging outputs: Automatic charging of the main supply board battery (BORD I) as well as support charging and charge retention (max. 1 A) of the vehicle starter battery (Start II) with protection against overcharging. Monitoring-free charging: standard protection against overload, overheating, polarity reversal and battery back-discharge (with insufficient solar power z. B. twilight, at night etc.). Parallel / buffer operation: compliance with the charging regulations even when consumers are operating at the same time. Overcharge protection: regulates the charging current of the battery when there is too much solar power and the battery is full, ensures Power consumption through immediate recharging for the highest possible battery charge. "IU1oU2" charging characteristic: Defined charging voltage increase (U1) prevents harmful acid layers (lead) and ensures equalization charging of the individual battery cells (lead and lith.), then automatic maintenance charging (U2). Charging cable compensation: voltage losses on the charging cables are automatically compensated. On-board network filter: problem-free parallel operation with wind and motor generators, network chargers, alternators, etc. Measurement output for EBL, possibly existing electroblock in the living area of ​​the vehicle: Enables the convenient use of a (Solar) power display built into the electroblock to control the solar system. Please check in advance the compatibility of your Schaudt electroblock (EBL) and the corresponding control and scoreboard, as we cannot guarantee this. Switching output "AES" (only MPP 250, MPP 350 and MPP 430): causes permanent abundant solar The automatic switching of refrigerators with "AES" (Automatic Energy Selector, Electrolux / Dometic) from gas to 12 V operation. Connection for battery temperature sensor (item no. 2001): With lead batteries, the adjustment takes place automatically the charging voltage to the battery temperature, causes a better full charge of the weaker battery in the cold, In summer temperatures, unnecessary battery gassing and stress is avoided. LiFePO4 batteries: battery protection at high and especially at low temperatures. If the battery temperature can drop below 0 ° C during operation. Ready to plug in for the connection of the Votronic solar display devices LCD-Solar Computer S for optimal control of the system. Technical data CHARGE REGLER-MPP250: Nominal battery voltage (AC) in [V] 12Solar module output max. [Wp] 250Solar module current max. [A] 15.0Solar module voltage max. [V] 50Charging current batt. I / II max. [A]  Load programs: 1 "Gel": charging program for gel batteries, characteristic curve IU1oU2Matched to closed, gas-tight gel / dryfit batteries with fixed electrolyte, which generally require a higher charging voltage level and longer U1 holding times in order to achieve short charging times with particularly high capacity storage and to avoid long-term battery "starvation".2 "AGM": Charging program for AGM / fleece batteries, characteristic curve IU1oU2Designed for charging closed, gas-tight AGM (Absorbent-Glass-Mat) batteries in lead-fleece technology, which require a particularly high U1 level with coordinated holding times for full charge and then a moderate U2 level to maintain charge (Plate and round cell technology).4 "UNIVERSAL": Charging program for lead-acid / wet / AGM batteries, characteristic curve IU1oU2Universal program for charging and maintaining the charge of acid batteries in vehicles (mixed mobile / stationary). With a medium U1 level, it still offers short charging times, a good charge factor and good acid mixing for open and closed, low-maintenance, maintenance-free standard, drive, lighting, solar and heavy-duty batteries, as well as AGM batteries with a normal U1 level.Li "LiFePO4": Charging program for lithium batteries, characteristic IU1oU2Charging program tailored to lithium LiFePO4 batteries with their own BMS and prescribed or built-in protective circuit.

Charging converter High charging capacity even on short journeys or full charge on longer journeys. The voltage is brought to the required level (increased or decreased) in order to be able to precisely charge the on-board battery with the optimal charging characteristic. Compensates for line losses and voltage fluctuations in the alternator, such as occur continuously to a considerable extent in Euro 6 vehicles (intelligent alternators). Compact design, low weight (high-frequency switch mode technology) and powerfully dimensioned power components for safe operation. A significantly better energy balance of the on-board battery without intervention in the starting circuit If the 12 V consumers are supplied, they are protected against overvoltage and voltage fluctuations. Overcharging of the battery is impossible because the charging voltage is regulated in such a way that it is free of peaks Fully automatic operation: the device is constantly connected to the batteries and is automatically activated by the running alternator of the vehicle. The batteries are not discharged when the engine is not running. Parallel and buffer operation: If the battery is used at the same time, it continues to be charged or is kept full. The device automatically calculates and monitors the adjustment of the charging times. Monitoring-free charging: Multiple protection against overload, overheating, overvoltage, short circuit, malfunction and back-discharge of the battery through electronic regulation up to complete separation of device and battery. Built-in on-board network filter: Problem-free parallel operation with other charging sources (EBL, chargers, motor and fuel generators, solar systems) on one battery. Charging cable compensation: voltage losses on the charging cables are automatically compensated. Connection for battery temperature sensor (included in delivery): In the case of lead batteries (acid, gel, AGM), the charging voltage is automatically adjusted to the battery temperature, results in better full charging of the weaker battery in the cold, and in summer temperatures unnecessary battery gassing avoided. LiFePO4 batteries: battery protection at high and especially at low temperatures <0 ° C. Charging aid for deeply discharged lead batteries: Gentle pre-charging of the (lead-acid, gel, AGM) battery up to 8 V, then powerful support for the battery if consumers are still switched on. Technical specificationsInput from vehicle starter battery "+ IN Start"Vehicle starter battery nominal voltage 12 V.Battery capacity (size), recommended at least 50 AhInput voltage range (EURO 6 +), D + controlled 10.5 - 16.5 V.Input overvoltage shutdown (EURO 6 +), max. 16.5VPower consumption max. 490 WCurrent consumption (at lowest input voltage) max. 0.05 A - 39 AActivation control input "D +", from D +, terminal 15, ignition 8 - 17 V.Charge output on board supply battery "+ OUT board"Charge / buffer / load current, regulated IU1oU2, lead, LiFePO 0 A - 30 A (0 A - 20 A *)Lead-acid, gel, AGM battery nominal voltage 12 V.Capacity (battery size), recommended / up to 60-200 / 260 AhLead loading programs stored in the memory 3Precharge current (deeply discharged battery <8V), max. 15 A (10 A *)Safety charging voltage in the event of battery overtemperature 12.80 V.LiFePO4 battery nominal voltage 12 V (12.8 -13.3 V)Capacity (battery size), recommended / up to 60-200 / 260 AhLiFePO4 charging programs stored in the memory 4Safety charging voltage in the event of battery overtemperature 12.80 V.Recharging branch, charging / charge retention for the 12 V START batteryfrom the BOARD battery (e.g. when charging the BOARD battery from the mains) 12 V / 0-1 AActive with lead acid, gel, AGM BORD battery voltage On:> 13.1 V, Off: <13.0 VActive with LiFePO4-BOARD battery voltage on:> 13.5 V, off: <13.4 V"T T" input for battery temperature sensor "board" yesEBL START In, EVS measurement input: yesQuiescent current, StandBy 3 ... 7 mATriple charging timerVoltage ripple <30 mV rmsCharging voltage limit "+ OUT board" (consumer protection) 15.00 VExternal overvoltage shutdown "+ OUT board" (20 sec) 15.50 VShort circuit / back discharge / S. Loaders 1 "Gel": charging program for gel batteries, characteristic curve IU1oU2Matched to closed, gas-tight gel / dryfit batteries with fixed electrolyte, which generally require a higher charging voltage level and longer U1 holding times in order to achieve short charging times with particularly high capacity storage and to avoid long-term battery "starvation".2 "AGM": Charging program for AGM / fleece batteries, characteristic curve IU1oU2Designed for charging closed, gas-tight AGM (Absorbent-Glass-Mat) batteries in lead-fleece technology, which require a particularly high U1 level with coordinated holding times for full charge and then a moderate U2 level to maintain charge (Plate and round cell technology).4 "UNIVERSAL": Charging program for lead-acid / wet / AGM batteries, characteristic curve IU1oU2Universal program for charging and maintaining the charge of acid batteries in vehicles (mixed mobile / stationary). With a medium U1 level, it still offers short charging times, a good charge factor and good acid mixing for open and closed, low-maintenance, maintenance-free standard, drive, lighting, solar and heavy-duty batteries, as well as AGM batteries with a normal U1 level.Li "LiFePO4": Charging program for lithium batteries, characteristic IU1oU2Charging program tailored to lithium LiFePO4 batteries with their own BMS and prescribed or built-in protective circuit.

Practical connection for batteries that are difficult to access This connection is the ideal solution if the battery is difficult to access or hidden and conventional clamps cannot be used. The ring terminals are firmly connected to the battery so that charging can then take place. For connection to CTEK battery chargersEyelets 8.4 mmLength approx. 43 cm

CHARGE YOUR 12 V - 13.2 V BATTERY WITH ANOTHER 12 V BATTERY! NO ALTERNATING CURRENT REQUIRED Charge the battery of your motorbike, ATV or race boat on the trailer on the way to the event.    OptiMATE DC to DC draws power from your vehicle's battery or from an external 12V battery to save, charge and maintain another 12V-13.2V battery. OptiMATE DC to DC's highly efficient long-term maintenance mode protects the source battery and only draws power when the battery to be charged needs it. The OptiMATE maintenance mode keeps the battery fully charged, never overcharges it, extends its life and improves battery performance. OptiMATE DC to DC can save a deeply discharged, sulphated battery at 2 volts.   CHARGING CURRENT: 2 A APPLICATION: Indoor/outdoor (lowest temperature: -4°F/-20°C). SAVE: Start with low voltage of 1 V IDEAL FOR: STD, AGM & GEL 12V batteries and LFP (LiFEPO4) from 3 - 96 Ah. INPUT: 12-16 V, 2.7 A max DESIGN: Weatherproof housing with wall bracket, with 6 ft/180 cm mains cable and 6 ft/180 cm charging cable with SAE plug. Weatherproof battery lead, standard battery terminal kit and battery terminal kit with fuse included.   SAFE: No risk of overcharging. Completely safe for vehicle electronics. Spark suppression. Safe for long-term battery maintenance. Automatic switch-off in the event of a short circuit or disconnected battery. 3-year limited warranty (this warranty is independent of the existing free statutory warranty rights. The statutory warranty rights are not restricted by this warranty).        

High performance diagnostic charger with test function for LiFePO4 and LFP batteries. Ideal for charging 12.8 V-13.2 V LiFePO4 and LFP high performance batteries with a capacity of 2.5 to 120 Ah. Special advantages: The TUNE mode provides a stable power supply when reprogramming vehicle systems, in car showroom displays, and when saving settings when battery cables need to be disconnected to accommodate power-driven accessory systems or when replacing batteries. BMS Reset and Button Activation - for batteries with resettable low voltage / deep discharge protection. BMS Reset Battery SAV mode: starts at 0.5 V with continuous monitoring and checking of defective or shorted cells; also the charge acceptance can be verified. Unnecessary (and unsafe) charging of a defective battery is prevented. SafeTº: automatic adjustment of the charging current to the ambient temperature determined by the charger. Reduced charging below freezing. Do not charge at temperatures below -20 ° C (to avoid damage to lithium batteries). AmpMatic: Microprocessor-controlled adjustment of the charging current to the ideal charging curve for LiFePO4, matching the battery size / condition, to achieve the fastest possible and complete charge. Technical specifications: CHARGING POWER: 9.5 A (AmpMatic) USE: Indoor / outdoor (lowest temperature: -20 ° C. SAVING MODE: Low Voltage Start at 0.5 V + 3-step Low Voltage SPAR and TEST mode SUITABLE FOR: LiFePO4 (LFP) 4 batteries with 2 to 120 Ah INPUT: global (100 to 240 V, 50 to 60 Hz), high efficiency (CEC listed), fully sealed DESIGN: weatherproof housing with wall mount, with 152 cm power cord and 180 cm charging cable with SAE connector SAFE: No risk of overcharging. Absolutely safe for the vehicle electronics. Radio suppression. Safe for long-term battery maintenance. Automatic shutdown in case of short circuit or disconnected battery. 3-year limited warranty.

The most modern 12 V 10 A & 24 V 5 A battery charger in the world! OptiMate 7 12 V-24 V is perfect for 12 V and 24 V starter and deep-cycle batteries requiring accurate temperature-controlled charging and unmonitored, safe long-term expectancy. SPECIAL FEATURES: Tailored to sensitive electronics: The RETTUNGS program is designed to provide a SAFE, fully automatic, low voltage start (starting at 0.5 volts) and IMPULS rescues of deeply discharged batteries connected to very sensitive electronics, such as light aircraft, industrial equipment, etc , Protection against Wrong Voltage Selection: When 24V has been selected and a 12V battery is connected, OptiMate 7 12-24 V immediately warns that a lower voltage has been measured and will not continue charging. The USER must confirm that the rated voltage of the connected battery is 24 V before the RESCUE mode is activated. CHARGING POWER: 10A @ 12 V / 5 A @ 24 V (Ampmatic) USE: Indoor / outdoor (lowest temperature: -40 ° F / -40 ° C). RESCUE: Starting at low voltage of 0.5 V (12 V) + 1-stage desulphation rescue. IDEAL FOR: STD, AGM & GEL 12 V batteries from 3-400 Ah / 24 V batteries from 1-200 Ah. INPUT: Global (100-240 V 50-60 Hz), high efficiency (CEC listed), fully enclosed. DESIGN: Weather resistant housing with wall mount, with 6 ft / 180 cm power cable and 6 ft / 180 cm charging cable with SAE plug. Weather resistant battery lead & standard battery terminal set included. 6 different charging programs: 12 V: 14.4 V (for normal lead acid batteries) 12 V: 14.7 V (for high performance AGM or spiral cells – OptiMa / odessey batteries)12 V: 15 V (for Ca/Ca batteries that need 15 V charge). 24 V: 28.8 V (for normal lead acid batteries) 24 V: 29.4 V (for high performance AGM or spiral cells – OptiMa / odessey batteries)24 V: 30 V (for Ca/Ca batteries that need 15 V charge). SAFE: No risk of overcharging. Absolutely safe for the vehicle electronics. Radio suppression. Safe for long-term battery maintenance. Automatic shutdown in case of short circuit or disconnected battery.