Koswork Battery Warming Safety Bag KOS32296

Features: *Get the batteries up to 100~110 °F (38~43 °C) for maximum performance *Flatter discharge curve & less fade *Lower internal resistance *Get the batteries to the temperature within 10 minutes *Used mainly for stock classes *Auto cut-off & re-heating *Made of the fireproof fiber inside the bag *Excellent in low temperature condition or indoor track with AC *4mm gold banana plugs Now the racers are using high current battery cycling to heat the battery before a race. With this warming bag, racers can easily heat the battery before a race. Connect to 12V DC power supply Although the warming bag works when connecting to 2S or 4S battery pack, but we suggest to use 12V to have a stable performance. Warning: *The bag is designed to use 12V power source. *Use this safety bag only in low temperature. *Please don’t heat batteries in safety bag for more than 25 minutes. It will accumulate too much heat inside the bag. *Never leave a charging battery unattended. Always ensure th