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Questions regarding Li-ion (lithium-ion) cells and batteries, including proper charging, protection, and usage.

17 votes
6 answers
50k views

Combining and Charging multiple Lithium Ion Battery Cells (3.6 V or 3.7 Volts)

1] Voltage: 3.6V or 3.7V Are all 18650 lithium ion battery cells 3.6 or 3.7 voltsor or are there different voltage Lithium Ion cells in the market as well? 2] Possible Voltage Shortage? Do all 3.6/3. …
Sam's user avatar
  • 515
0 votes
1 answer
860 views

Paralel charging two Lithium Polymer batteries on a MP3 player Colorfly C4

Is it a good idea to replace a built in lithium polymer battery rated: 3.7 V, 2000 mah with TWO x brand new 3.7 V, 1800 mah (much thinner stacking them together) connected in PARALLEL and place it in …
Sam's user avatar
  • 515