Type: NiMH Nun-Chuck
Voltage: 9.6v
Capacity: 1600mah
Size: 18 x 118mm + 18 x 118mm
always fully charge and fully discharge nimh batterys

WARNING
NEVER REVERSE POLARITY OF THE CONNECTION. ALWAYS DOUBLE CHECK POLARITY OF BATTERY'S CONNECTOR TO MAKE SURE RED WIRE TO RED WIRE AND BLACK WIRE TO BLACK WIRE. 
PLEASE ALWAYS USE A SMART CHARGER (WITH AUTOMATIC POWER CUT-OFF FUNCTION) AND CHARGING BAG TO CHARGE A NiMH BATTERY, CHARGING A NiMH BATTERY WITHOUT AUTO CUT OFF MAY CAUSE A BATTERY FIRE. FOR LARGER BATTERY PACKS (10AH OR LARGER), PLEASE ALWAYS USE A SMART CHARGER WITH TEMPERATURE SENSOR TO AVOID OVER HEATING WHICH MAY CAUSE A BATTERY FIRE.
PLEASE ALWAYS KEEP NIMH CELL BATTERY PACKS IN CHARGED CONDITION AFTER USE OR BEFORE STORING THEM. NiMH BATTERIES SHOULD BE CHARGED AT LEAST ONCE EVERY SIX MONTHS; OTHERWISE A NIMH BATTERY WILL REDUCE CAPACITY AND DIE. 
YOU MUST CHARGE A NIMH BATTERY BEFORE USE, AND ALLOW 3-5 CYCLES OF CHARGING AND DISCHARGING FOR BATTERY CAPACITY TO BE RECOVERED.