Polymer Lithium Ion Battery (3.7V, 1Ah)

(5 customer reviews)

£5.10 inc VAT

Availability: 43 in stock (can be backordered)

Brand: SparkFun
Part Number: PRT-13813
SKU: PPPRT-13813
Barcode: 5055421076054


These are very slim, extremely light weight batteries based on Lithium Ion chemistry. Each cell outputs a nominal 3.7V at 1000mAh! Comes terminated with a standard 2-pin JST-PH connector but be aware this connector has a 1mm pitch spacing between pins.
If you require a 2mm pitch connector so you can plug into a microbit etc then you can simply chop the 1mm connector of and solder on a 2mm connector instead.

These batteries require special charging. Do not attempt to charge these with anything but a specialized Lithium Polymer charger.

These 3.7V Polymer Lithium Ion (LiPo) batteries provide a high power capacity in a very small lightweight package. This makes them ideal for many applications. They are often used in portable consumer products such as Bluetooth speakers and mobile phones.

The batteries are supplied with 100mm leads terminated with a standard 2 pin JST-PH connector.

These Polymer Lithium batteries come with a built in protection circuit which protects against; over voltage, over current, over discharge and also provides short circuit protection. When fully charged the battery will have a voltage of around 4.2V and when fully discharged the battery has a cut off voltage of 2.4V.

These batteries do not have a hard protective case. You should take care when housing the batteries in your design to ensure they have sufficient mechanical protection to protect the battery from any possible damage. If a battery does become damaged (dented, bent, etc) then it should not be used.


Though these cells are rated for discharge rates of up to 2.1A, due to the connecting wire and connector used we do not recommend exceeding a discharge rate of more than 1A.


  • Built in protection circuit to prevent over charging or discharging.
  • Built in short circuit protection circuit.
  • Robust power source under extreme conditions (-10 to 60C).
  • JST-PH connector.
  • Excellent long-term self-discharge rates (<8% per month)
  • 2.00 x 1.32 x 0.23″ (50.8 x 33.5 x 5.9 mm)


  • 1 x Polymer Lithium Ion Battery – 1000mAh.


  • Maximum Length: 34.5mm.
  • Maximum Width: 6.2mm.
  • Maximum Height: 52mm.
  • Cable Length: 100mm (nominal).


5 reviews for Polymer Lithium Ion Battery (3.7V, 1Ah)

  1. Vaughan Thomas

    Anyone who has the Minelab WM10 wireless module this battery fits perfectly

  2. Mark Cormack

    Has the Adafruit connector for connecting to Powerboost 1000c, useful.

  3. Jeroen Minderman

    Does what it says on the tin, nice and compact.

  4. Andy Borrows

    Perfect replacement battery for my Fiio E7 DAC/headphone amp.

  5. Oskar Jako

    Good build and works like a charm!

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