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Power & Batteries > LiPo Batteries

Polymer Lithium Ion Battery (LiPo) 3.7V 400mAh

SKU: CE04375

$10.95 AUD, inc GST
$9.95 AUD, exc GST
Polymer Lithium Ion Battery (LiPo) 3.7V 400mAh
10.95 AUD

SKU: CE04375

$10.95 AUD, inc GST
$9.95 AUD, exc GST
6 reviews 0 5 5
In stock, ships today if ordered before 2PM
Delivered by Fri, 15th of Dec
Shipping Offer

10-50 $9.50
50+ $3.60
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These are very slim, extremely light weight batteries based on the new Polymer Lithium Ion chemistry. This is the highest energy density currently in production. Each cells outputs a nominal 3.7V at 400mAh! This battery comes terminated with a standard 2-pin JST-PH connector - 2mm spacing between pins. Do not attempt to charge these with anything but a charger specifically designed for Lithium Ion batteries.

Battery includes built-in protection against over voltage, over current, and minimum voltage.

Note: Although these cells are rated for 2C continuous discharge, the wiring and connectors are only rated up to 1A, so be sure to take that into account when determining your power requirements.

Note: Be careful with the JST connectors. They can stick in pretty good and tugging on them can damage the connector. Check this tutorial for an easy way to remove them safely.

Note: Please use caution when using this battery in wearable projects. When using conductive thread, a short in the thread can create sparks and heat. We recommend using coin cell batteries for beginners.

Dimensions: 38x25x6mm

Weight: 11g 

  • 2C continuous discharge
  • Excellent long-term self-discharge rates (<8% per month)
  • Robust power source under extreme conditions (-10 to 50C)


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Documentation and Resources:

Product Comments

Customer Reviews

  1. Review by James verified purchaser

    This item is small and easily fitted the case I was using to house the project. The battery worked perfectly, charged ok and did what I wanted. But the processor board I chose (Adafruit HUZZAH ESP8266) consumes too much power to make this battery a real option. (USB bridge chip remains on all the time, 6.4ma). I am considering a number of different board which would make this battery an excellent choice. (Posted on 11/09/2017)

  2. Review by David verified purchaser

    So tiny! (Posted on 29/08/2017)

  3. Review by paul verified purchaser

    I don't buy LiPo batteries unless I can trust the quality to be of a high standard and that's exactly what you get here from Core.
    10/10 (Posted on 10/06/2017)

  4. Review by Peter verified purchaser

    Neat little battery with a really small footprint - perfect for small projects and works a treat when combined with Powerboost 500 charger. (Posted on 20/04/2017)

  5. Review by Matthew verified purchaser

    Small yet capacious. Bought for an LED project & it lasts for hours. (Posted on 18/09/2016)

  6. Review by Peter verified purchaser

    Works as expected - good value. (Posted on 18/08/2016)

We deliver Australia-wide with these options:

  • $3 for Small Items (4-6 days, not tracked, only available on selected small items)
  • $6.95 for Standard Post (2-4 days, tracked)
  • $8.95 for Express Post (1-2 days, tracked)
  • Pickup - Free! Only available to customers who live in the Newcastle region (only after we email you to notify your order is ready)

International Orders - the following rates are for New Zealand and will vary for other countries:

  • $11.49 for Pack and Track (3+ days, tracked)
  • $16.50 for Express International (2-5 days, tracked)

If you order lots of gear, the postage amount might increment based on the weight of your order.

Our physical address:

Unit 18, 132 Garden Grove Parade
NSW, 2289

Please checkout our customer service page if you have other frequently asked questions such as "do we do purchase orders" (yes!) or "are prices GST inclusive" (yes they are!). We're here to help - get in touch with us to talk shop.