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Packing 14.8V 5.7Ah polymer Li-Ion rechargeable battery module made of 4 pcs Polymer Li-Ion Battery: 3.7V 5700 mAh (PL-H7051119) The battery pack is wrapped by heavy duty heat shrink tube Optional for 1 pc A Fire Retardant Bag: 295mmx230mmx75mm --- Reduce the chance of damage if caught fire This Fire Retardant Bag (Li-Ion Safer Bag) is intended to reduce the chance of damage in the event of catching fire. Must locate & seal the battery pack in the bag while charging / leaving without any attention Voltage 14.8 v (working) 16.8 V ( peak) 11 V ( cut-off) Capacity 5700 mAh ( 84.36 wh) Protection One PCM with balance function (10A max.) is installed with the battery pack to protect battery from Over-charging beyond 4.25V/cell Over-discharging below 2.75V/cell Over-drain beyond 10A Must wait min of 30 minutes after battery is fully charged to allow the pcm to perform balance function on all the cells within the pack. One pcs of 7Amp polyswitch is installed to limit max. discharging current and to protect wrong polarity Pre-wired Charge / Discharging terminal: 6" 18 AWG wire without connector. Need connector for DIY? Please click here to order separately. Max. Discharging Rate 7.0 Amp limited by One pcs of 7Amp polyswitch. Dimensions 5.0"(126mm) L x 1.7"(44mm)W x 2.5"(62mm)H Weight 1.2 lb ( 545 grams) Smart Tips Must use 1.8A Universal Smart Li-Ion battery charger to charge the pack The estimated charging time is 5.7 hours. You may DIY the battery pack with 13.2V regulator with switch(2A rate) for 13.2VDC 2.0A Max output If you would like to use this charger in your car, you can choose our 110W DC-AC inverter, then you can charge your RC battery everywhere. Need 12V Regulated Li-Ion pack? Please click here to order Need a portable bag? Please click here to order Applications Autonomous submarine to drive a 12V DC motor with faster speed RC Robot with lighter weight Please click here to see the Comparison Poly Li-Ion pack vs NiMH / SLA to know more the advantages Warning Li-Ion battery may be exploded if misuse. We are not responsible for any damages or losses caused by misusing (included but not limited to improper charging/discharging, any changes of this battery pack, miss-assembling battery packs) . Always charge battery with attention. Battery pack shall be placed on a fire-proof place to avoid any accident Please check battery polarity before plug battery into light. Never make wrong polarity connection. For safety warning please see the link here