IMPORTANT!!! READ MANUAL in its entirety before use.
Take extra precautions when handling Lithium Polymer (LiPo) batteries,
as they require different safety measures compared to NiMH or NiCd
Failure to follow these instructions can result in severe permanent
damage to battery, cause serious personal injury, or lead to a fire.
LiPO batteries are intended to be used
with compatible radio controlled (R/C) models and airsoft guns only. Any damage
caused by misuse or modifications will void your warranty and can cause serious
By purchasing this product the
buyer/user agrees that they have read and understood the safety precautions
printed in this document and accepts full responsibilities of these risks. By
agreeing, the user/buyer does not hold Tenergy,
responsible for any accidents, injury to persons, or property damage that may
If buyer/user does not agree with
these conditions, please return the battery in its original condition
immediately to the place of purchase.
General Safety Guidelines
use a NiCd/NiMH charger to charge
batteries. Only use chargers designed for Lithium Polymer (LiPo)
batteries in any
location that exceeds 40-80° F (e.g. in a car, garage, or in the sun)
leave charging batteries unattended. Keep watch on the charging process & react
to any potential problems that may occur.
let the battery’s positive and negative leads to touch. This can cause the
battery to short and lead to a FIRE. If for any reason you need to cut the
terminal wires, it will be necessary to cut each wire SEPARATELY, to make sure
the wires do NOT touch each other.
swollen or ballooned battery
(even if swollen upon purchase). Continuing to charge a battery that has begun
to swell will result in a fire. Follow these steps:
STOP the charging
and disconnect battery
Disconnect battery from the device immediately.
Place it in an open non-flammable area.
Watch it for approx.
30 minutes from a safe distance.
procedure to dispose of battery
inspect the battery to make sure there are no signs of damage, deformity, or
swelling before charging. If there are,
STOP charging the battery and follow the proper procedure to dispose of the
charge batteries in a fireproof container and away from combustible material. Do
NOT charge on surfaces that can catch fire – this includes: wood, cloth, carpet,
or in the application’s device.
store LiPo batteries in cool,
dry places between 40-80° F.
If the battery reaches high temperatures in the event of an R/C Model crash,
follow these steps:
Disconnect battery immediately from the
Place it in an open non-flammable area.
Watch it for approx.
30 minutes from a safe distance.
If the battery
appears to be stable (no signs of damage or swelling) proceed to put it back
into your device and continue using with caution.
Keep LIPO batteries
out of reach of children or pets.
Avoid Over-Discharging LiPo Batteries
Over-discharging—continuing to use a LiPO battery even when
it is almost completely drained or below its minimum voltage level—can cause
permanent damage to the battery.
The damage caused by this can be INTERNAL battery damage
and will not always be visible. However, internal damage can eventually lead to
a FIRE when attempting to re-charge it at later times.
problem can be easily and commonly overlooked in Airsoft
applications because there are
no indicators that the battery
is at a low voltage and should be removed to be re-charged. Please exercise
proper understanding and usage
of the battery in your application to prevent safety issues or injuries and
to prolong battery life.
Tenergy recommends using a
low voltage detecting device for LiPo batteries
in Airsoft guns. An example is the Tenergy LiPo Alarm (PN#52023). This
LiPo alarm is a great preventive
measure for maintenance and longevity of LiPo battery packs.
Caution – Before Charging
ALWAYS visually inspect
LiPo battery for any damaged leads, connectors, shrink
wrap, swelling of cells,
or other irregularities before charging or using.
Do NOT use if you find any of the above issues with your pack.
Before installing or changing the connector, check the voltage of the pack using
a digital voltmeter (not your charger).
All new packs ship at approximately 3.80V per cell.
2S pack should read approximately 7.60V
3S pack should read approximately 11.40V
Do not attempt to charge any pack if open voltage per cell is less than 3.3V
Do not charge a 2-cell pack if below 6.6V
Do not charge a 3 cell pack if below 9.9V
damage to the pack or leads
is found, or if the voltage is significantly less for your pack
than specified above, do NOT attempt to charge or use the pack. Contact Tenergy
directly as soon as possible.
batteries have two separate leads. The shorter lead with the WHITE (JST
XH) connector is for charging
and cell-balancing. The second longer lead is for discharging or the
power source for your R/C models or airsoft guns.
Charging LiPo Batteries
leave charging batteries
unattended. Constantly watch the charging process
and react to any potential
problems that may occur.
batteries in a fireproof
location. Never charge on wooden surfaces, cloth, carpet, or materials that can
Allow the battery to cool down to ambient
temperature before charging.
Do NOT charge
packs in series. Charge each battery pack individually. Failure to do so may
result in incorrect battery recognition and charging functions. Overcharging may
occur and result in FIRE.
**In order to discharge packs in series,
the charged voltage of both packs must be within 0.01V for the same cell count
Use the JST
XH connector for charging. There are two sets of lead wires on
Tenergy LiPo batteries and the
shorter lead is almost always used for charging.
Note*See picture above to identify JST
XH cable for charging
When selecting the cell count or voltage for
charging purposes, select the cell count and voltage as it appears on the LiPo
battery label. Selecting a cell count or voltage other than the one printed on
the label will cause improper charging rates that can lead to fire.
safety precaution, confirm the information printed on the battery is correct.
The label on a 2-Cell battery pack in series will read – “7.4V” – You must
select 2-Cell for charging.
The label on a 3-Cell battery pack in
series will read – “11.1V” – You must select 3-Cell for charging.
You must check the pack voltage before charging.
Do not attempt to charge any pack if open voltage per cell is less than 3.3V.
Do not charge a 2-cell pack if
Do not charge a 3 cell pack if
In most cases the charger's charging current
should not exceed 1C, unless otherwise noted.
A higher setting may damage the battery & cause a fire.
C-rating is a standard which defines a battery's operating current based on its
capacity. 1C is the current it takes
to approximately fully discharge a battery in 1 hour, and is simply defined by
dropping the "h" in the pack's capacity (e.g. 1C for a 1000mAh LiPo battery is
1000mA, or 1A). The examples below
demonstrate how to figure out the proper charging current for different packs:
900 mAh LiPo Batteries -> Charge at or
below 900 mA
1300 mAh LiPo Batteries -> Charge at or
below 1300 mA, or 1.3 A
mAh LiPo Batteries -> Charge at or below 2200 mA, or 2.2 A
Some LiPo chargers on the market may contain insufficient or incorrect
information regarding the battery packs they are designed for. It is the user’s
responsibility to assure the charger you purchased is compatible with Tenergy's
Discharging Batteries & First Uses
Battery packs should NEVER be over-discharged at any time.
Specifically, over-discharging on the first use will ruin the battery
permanently before you get to fully enjoy it. Be extremely careful not to
over-discharge new packs:
We recommend 3-5C max average discharge for breaking in new
Batteries Involved In Crashes/Severe Impact
For RC car or plane devices, carefully inspect your battery
after any severe crash. Cautiously look for any damaged leads, connectors,
broken shrink-wrap, punctures, swelling of cells, or other irregularities.
Not doing so can lead to battery failure at some point in the future or even
In the event of a crash or if the battery exceeds high
Disconnect battery immediately from the device.
Place it in an open, non-flammable area.
Watch it for approx. 30 minutes from a safe
If the battery appears to be stable (e.g. no
signs of damage or swelling), proceed to put it back into your device and
continue using with caution.
For Airsoft applications, while the battery may not be
susceptible to a crash, please be aware of severe direct impact. Exercise
caution and follow the procedure above if you feel the battery's safety has been
Battery Maintenance & Handling
NEVER disassemble existing LiPo packs to mix with
other LiPo cells/packs.
Use a high quality Lithium Polymer charger – a
poor quality charger can be dangerous.
Do NOT discharge battery to a level below 3V per
cell under load. Deep discharge below 3V per cell can deteriorate battery
performance. Be sure to set your ESC for the proper cut off voltage (6.0V cut
off for 2S packs, 9.0V cut off for 3S packs, etc).
For Airsoft users, use extreme caution and
protect LiPo batteries to avoid puncture of the cell – punctured cells can cause
For Airsoft users, it is recommended to use a Low
Voltage Detection Device to warn users when the battery pack voltage is too low.
This ensures longer battery life & prevents dead batteries.
Charge: 32 to 113°F
Discharge: 32 to 140°F
Let battery cool down to ambient temperature
During discharge and handling of batteries, do
not exceed 160°F.
Storage & Transportation
NEVER store batteries near an open flame or
Do NOT expose battery pack to direct sunlight
(heat) for extended periods of time
Storing battery at temperature greater than 170°F
for extended periods of time (more than 2 hours) can cause damage to battery and
a possible fire.
For long term storage, do NOT store batteries
fully charged; it is recommended to fully charge and then discharge it to 50-60%
of their capacity before storing.
Store battery at room temperature between 40 and
for best results.
When transporting or temporarily storing in a
vehicle, temperature range should be greater than 20
but no more than 150°F.
Battery Life & Disposal of LiPo Batteries
Rechargeable LiPo batteries do NOT last forever. Batteries
that have lost 20% of their initial capacity should be removed from service and
disposed of properly.
If at any time you see any physical damage in a LiPo
battery such as swollen cell, split, or tear in the cell’s foil covering, STOP
usage immediately and dispose of battery.
Procedure of LiPo Batteries:
Use the discharge function of your charger to discharge the battery to
1V/Cell or lower. Make sure the wire leads are fully insulated and soak battery in
salt water (1/2 cup of salt per gallon of water) for 2-3 days.
Then wrap battery in a bag for disposal.
Product warranty is limited to original defects in material
and workmanship. Warranty does not cover collateral damage. Due to the nature
and use of this product, there is no term warranty. Misuse, abuse, incorrect
charging, failure to comply with the above warnings and guidelines, and other
inappropriate use of this product will not be covered under warranty.