User Manual

RC LiPo Battery with XT60 Connector
Thank you for choosing Watson
This lithium-polymer (LiPo) battery features an XT60 connector commonly found in
remote-controlled (RC) vehicles, including many quadcopters and drones. This battery
offers a 2,200 mAh capacity and 20 C discharge rate in a compact, lightweight size that
is ideal for an airborne RC vehicle. Please read and follow these precautions and keep
this manual in a safe place.
GENERAL PRECAUTIONS
 Do not strike, bend, or short-circuit this battery.
 Do not attempt to disassemble this battery or replace the bare cells.
 Do not throw this battery into a fire or soak it in liquid.
 Do not store this battery in an environment that may exceed 104°F (40°C).
 If you are using this battery with an RC vehicle, always return the vehicle to a state of
rest when battery power is running low.
 Dispose of used or damaged batteries according to local regulations.
 Store this battery in a partially charged state and out of the reach of children.
 All photos are for illustrative purposes only.
CHARGING PRECAUTIONS
 Before using this battery for the first time, fully charge it with a LiPo-specific balance
charger that has the proper JST-XH connection for the battery (see diagram).
 Charge LiPo batteries only with LiPo-specific balance chargers. Other types of
chargers are not recommended.
 Battery charging currents should never exceed the manufacturer’s specified
maximum. Higher charging currents may result in insufficient charging, inadequate
performance, overheating, and leakage.
 Charge this battery at a maximum of 4.25 V per cell. Series charging is not recom-
mended.
 Charge this battery only in environments with temperatures between 59°F and 95°F
(15°C and 35°C). Temperatures outside this range may lead to insufficient charging
and inefficient charging and discharging. If the battery’s surface temperature
exceeds , terminate charging immediately.
 Make sure to properly connect the positive (+) and negative (-) electrodes of the
battery and to strictly avoid reverse charging. Reverse charging can destroy the
battery cells, reduce the charging and discharging performance, and/or result in
overheating, leakage, and unsafe performance.
 If anything abnormal occurs during the charging process, terminate charging
immediately.
USAGE PRECAUTIONS
 Always check the battery pack’s voltage before use. The voltage difference between
any two cells should be within 30 mV. If the voltage difference is between 30 and 100
mV, we recommend recharging the battery. If the voltage difference between two
cells is greater than 100 mV, you will need to recharge the battery. Failure to do so
may cause the cell with lower voltage to over-discharge and can lead the battery to
swell and overheat. It can also cause a shorter cycle-life and adversely affect the
battery’s performance.
 Do not exceed the battery’s maximum discharge rate. Doing so may cause the battery
to overheat and swell, which can lead to a shorter cycle life, generally deteriorated
performance, breakage, or an internal short-circuit.
RC-2220C3S