SFK SFK315EX 12.8v 315 AH 4.1 kWh Victron Communications Bluetooth Dual Heating Lithium Battery (with RS485 Data Port and Cable)

Features

• 4.1 (range is between 4.0–4.2 kWh on average) kilowatt-hours of reliable lithium power, replaces up to 6 lead acid / AGM batteries (100ah) and is designed to be discharged to 100% of available capacity without harm to the battery.
• Up to 2.4 kilowatts of peak power, and 1500 watts of continuous power.
• 200 amp discharge capable, 125 amp continuous rating (can run 125 amps from 100% to 0% without hitting thermal cut-off limit).
• GEN 2 B Switch allows Bluetooth to be turned on/off, full active balancer control, and can show battery temperature.
• Expected cycle life of 8000 cycles at 80% DOD, and up to 11000 cycles at 50% DOD, 12-15 year usage life.
• Fully compatible with existing 12v infrastructure including standard 12v lead acid/AGM battery chargers, trickle chargers and high voltage DC systems up to 48v (when linked in series with 4 batteries).
• Built-in cell heaters to allow for low temperature charging, temperature to activate heaters can be set inside the app, users can also test heating via the app.
• Triple Heating Modes! The only battery on the market that lets users select how the heating system works, select from automatic low temp charging heating, or use standby heating to keep the battery warm even when it's idle, or you can disable heating altogether and use low temperature protection only.
• User selectable Max/Min State of charge, you can set upper and lower state of charge limits on your battery, e.g. set a lower limit of 20%, once the battery reaches this limit discharging will become disabled. Alternatively you can set an upper limit to 80%, so now you can leave your RV/coach plugged in, and your battery will not be stressed as it will stop charging at 80% there by, extending its life.
• Data Port allows direct integration with Victron systems with the Venus OS compatible devices like the Cerbo GX (when using the SFK data cable), other systems like Votronics, Growatt, Lux Power and many more will become available when the SFK hub is released. 
• Smartphone/device compatible with Bluetooth monitoring/configurable app. Available for IOS/Android.
• Can be linked in series up to 48v (4 batteries in series) as well as up to 4 in parallel with a combined output of 5.0 kW continuous.
• Automatic low/high temperature and low/high voltage cut-off to stop battery damage from occurring.
• Automatic short circuit prevention, as well as overcharge and over discharge prevention.