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POWER / LIION & LIPOLY / BATTERIES / LITHIUM ION CYLINDRICAL BATTERY - 3.7V 2200MAH
DESCRIPTION
Need a big battery for your project? This lithium ion battery contains a 2200mAh and a
protection circuit that provides over-voltage, under-voltage and over-current protection. Yet, it is
slim and easy to fit into many project cases.
This cell can provide 2C of peak current (4400mA). Note that these batteries are not designed
to sustain such high loads, we suggest keeping any constant current draw under about 0.5C (1
Amp)
1
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Lithium Ion Cylindrical
Battery - 3.7v
2200mAh
PRODUCT ID: 1781
IN STOCK
1-9
10-99
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DESCRIPTION
TECHNICAL DETAILS
The battery comes with color coded wires, but to use with our chargers you'll likely want to
connect a JST 2-pin cable (included!). Because they have a genuine JST connector, not a knock-
off, the cable wont snag or get stuck in a matching JST jack, they click in and out smoothly. The
cables are rated for 2A so if you use them keep that in mind.
The included protection circuitry keeps the battery voltage from going too high (over-charging)
or low (over-use) which means that the battery will cut-out when completely dead at 2.5V.
However, even with this protection it is very important that you only use a LiIon/LiPoly
constant-voltage/constant-current charger to recharge them and at a rate of 0.5C (1 Amp) or
less.
Like most lithium-ion packs, the batteries we sell do not have thermistors built in. This is why we
suggest charging at 1/2C or even less - 1A max in this case. Of course, you can charge at a
lower rate - it'll just take a little longer to fill up.
Additional safety notes: Do not use a NiMH/NiCad/lead-acid charger! Also, do not abuse
these batteries, do not short, bend, crush or puncture. Never charge or use unattended.
Always inspect batteries and surrounding circuitry constantly for any damage, loose wiring,
or possibility of short circuits. Polarity matches all Adafruit LiPoly/LiIon chargers and boards,
other brands may have reverse polarity and can destroy your battery. As with all Lithium ion
polymer batteries and with any power source - they should be used by experts who are
comfortable working with power supplies
TECHNICAL DETAILS
MSDS Report
Spec/Data Sheet
Battery UN38.3 Test
LEARN
Lithium Battery Shipping Restrictions
Dimensions: 69mm x Diameter18mm
Weight: 46g
Nominal Capacity: 2200mAh ±2%
Nominal Cell Voltage: 3.7-3.9V
Standard Charge Current: ~0.2C / 0.5A
Max Charge Current: 1C / 2.2A
Charge Cut-Off Voltage: 4.2V
Standard Discharge Current: 0.5C / 1.1A
Discharge Cut-Off Voltage: 2.75V
Impedance: ≤35mΩ
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