SparkFun will be closing on Monday for Memorial Day (5/28). Orders placed after 2pm MT on Friday (5/25) will process and ship out on Tuesday (5/29).
Replacement: None. There is no current replacement for this battery. We are no longer able to source this size, sorry! This page is for reference only.
This is an extremely tiny and light weight battery 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 20mAh. This may sound small, but the cell is less than an inch square!
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 Lithium Polymer charger. Battery includes built-in protection against over voltage, over current, and minimum voltage.
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.
Weight: Our scale doesn’t go this low
2C continuous discharge - very high for low price Excellent long-term self-discharge rates (<8% per month) Robust power source under extreme conditions (-25 to 60C)
JST connector Digikey 455-1734-1-ND (Top Entry) Digikey 455-1749-1-ND (Side Entry)
* * 0.7x0.65x0.125"
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