These are very slim, extremely light weight batteries based on the new Polymer Lithium Ion chemistry.
Everybody loves more pow-wah! And Lithium Polymer batteries offer surprisingly dense power cells, and an increasingly affordable price.
These particular batteries are among the highest energy-density versions presently in production, and come with 55mm (2.17") leads terminated with a standard 2-pin JST connector with 2mm spacing between pins.
Need something to charge this bad boy with? Try the one of our chargers!
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Warning: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.
Please visit www.P65Warnings.ca.gov for more information. This item was manufactured prior to August 31, 2018.