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Panasonic CGR18650E Cell Specifications
Warning: The information in this thread was obtained from various sources on the Internet, including any datasheets linked below, and is provided for reference only. It is not guaranteed to be accurate. To prevent fire or personal injury, never charge or discharge a cell before verifying the information yourself using the original specifications sheet provided by the manufacturer.

Capacity:2550mAh Rated
Voltage:3.60V Nominal
Charging:4.20V Maximum
1715mA Standard
--- mA Maximum
Discharging:3.00V Cutoff
490mA Standard
4900mA Maximum
Description:Pink Cell Wrapper
White Insulator Ring
18650 Form Factor

Data References:

Just got a pack of heaters like that, which is a first for non-Sanyo cell for me.
They came from a Lenovo L08P6D11, 11.1V, 5200mAh pack, at 3.5V.
Were charging just fine up to voltage limit, current started to drop a bit, then for some the voltage sagged and they went back into CC and started heating up, while the others just heated up in CV while slowly dropping current.

Graph of the charge attempt:
You can follow my projects at

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