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 850mAh! Comes terminated with a standard 2-pin JST-PH connector - 2mm spacing between pins. These batteries require special charging. Do not attempt to charge these with anything but a specialized LiPo charger.
Battery includes built-in protection against over voltage, over current, and minimum voltage. 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.
Note: This battery is not available to ship to Alaska or Hawaii, or through any express services (2-day, overnight), or internationally. This is temporary! Check out our blog post for more information. Additionally orders may take longer to process and therefore do not qualify for same-day shipping. Sorry for any inconvenience this may cause!
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: This item is non-returnable. If this item arrives damaged or is not functioning properly, please do not hesitate to contact us to see if further actions may be taken.
Weight: 18.5g (0.65oz)
If it requires power, you need to know how much, what all the pins do, and how to hook it up. You may need to reference datasheets, schematics, and know the ins and outs of electronics.
Skill Level: Noob - You don't need to reference a datasheet, but you will need to know basic power requirements.
See all skill levels
Based on 11 ratings:
2 of 3 found this helpful:
je suis tres heureux d'avoir trouve et recu cette batterie pour mon gps. Merci beaucoup pour cette rapide transaction
0 of 1 found this helpful:
This is a nice little LiPo cell and the USB charger I bought works well with this cell. As it turns out, however, I need a higher voltage so I’ll need even smaller cells to connect in series. Probably three or four 300Ah cells will work.
I was sick and tired of buying poor quality cells from the RC arena. It was great to find a cell from a quality manufacturer that had a protection module. This is a quality cell, not junk sold to the RC market.
They also follow the proper shipping regulations for lithium cells. This is a good thing.
I will continue to buy cells from Spark Fun.
I am using this for a wearable project. It is just the right size and holds a charge for a long time.
I had no problems incorporating this into my project, and it works as expected.
The only issue I had was that I can only purchase two at a time. Otherwise, the battery performed admirably and per specification.
Good size vs performance char.