4x 2800mah Samsung ICR18650-28a in Arris 41.4wh Square
Here are modem batteries that contain 4x Samsung 2800mah ICR18650-28a in 2s2p configuration. Modem batteries are great source to salvage cells from since they are used as backup only. It is very rare for a home in the US to lose power and the batteries only cycle when a home loses power. Therefore these modem batteries likely only cycled 0-5 times and the cells should test great.
|Description:||Purple (Light) Cell Wrapper
White Insulator Ring
18650 Form Factor