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)

    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. 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

    Technical Details+

    • 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
  • Learn


    Boost up your batteries to power your project
    Your all-in-one Lipoly Charger+Booster solution for on-the-go projects
    The best enclosure for a Raspberry Pi!
    Boost up your batteries to power your big project
    A powerful rechargeable battery pack with load-share
    Turn a Tiki torch into a beautiful animated LED light display.
    288 points of twirling, programmable lights
    Boost your cell phone or mobile device with this 3-D printed battery and charger
    Any sufficiently advanced technology is indistinguishable from magic.
    Explore the apocalypse with a trusty Pi
    They'll be able to see you spinning from Planet 9
    Data is Power! But power is not data - unless you know which wires to connect.
    Make a medieval morning star for cosplay!
    Lights, music, and sound effects prop circuit design
    Part 2: Lights, music, and sound effects prop circuit integration
    Part 3: Permanent circuit, 3D printing, and final assembly
    Level shifters are like little bilingual translators for your electronics!
    A Magic Wand responds to movment to cast spells