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Full Version: Sanyo UR18650A Cell Specifications
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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.

Brand:Sanyo
Model:UR18650A
Capacity:2100mAh Rated
Voltage:3.60V Nominal
Charging:4.20V Maximum
1510mA Standard
--- mA Maximum
Discharging:2.75V Cutoff
420mA Standard
6300mA Maximum
Description:Red Cell Wrapper
White Insulator Ring
18650 Form Factor

Data References:
http://industrial.panasonic.com/cdbs/www...0CE285.pdf

Pictures:
The unknown Sanyo/Panasonic cell in the database with the (darker) purple ring may be the same model as this one. I've got a few red with purple here with "UR18650A R1112" very faintly embossed into the wrap lengthwise.
Ring variant for that cell

(10-09-2017, 07:22 AM)tin Wrote: [ -> ]The unknown Sanyo/Panasonic cell in the database with the (darker) purple ring may be the same model as this one. I've got a few red with purple here with "UR18650A R1112" very faintly embossed into the wrap lengthwise.

I can confirm, have some purple ones that have the UR18650A embossed as well.

https://www.tme.eu/en/Document/5057fe98d...18650A.pdf seems to be the proper datasheet from sanyo.
I also have a bunch of these cells with purple rings and "R1112" on someĀ and "M32A" on othersĀ engraved texts.

Attaching images.

That said, I believe these cells should include all three rings colors on the cell database page.
(02-14-2018, 02:11 PM)thanar Wrote: [ -> ] I also have a bunch of these cells with purple rings and "R1112" and "M32A" extra engraved texts.

Attaching images.

That said, I believe these cells should include all three rings colors on the cell database page.

The R1112 is thought to be a legal marking by Sanyo in Korea, the M32A is a date code.

J = 2005
K = 2006
L = 2007
M = 2008

32 = 32nd week of the year

A = revision

So looks like that cell was made in August 2008...

I have had fairly bad luck with the purple rings, they tend to heat up considerably at the final CV charge phase of the test sequence.
(02-14-2018, 04:41 PM)Detritalgeo Wrote: [ -> ]The R1112 is thought to be a legal marking by Sanyo in Korea, the M32A is a date code.
...
So looks like that cell was made in August 2008...

I have had fairly bad luck with the purple rings, they tend to heat up considerably at the final CV charge phase of the test sequence.

Fair enought on the R1112/M32A markings, however on my cells the "M32A" text is placed exactly where the "R1112" is on the other cells, as shown on photos.
I also have to agree on the recoverability of the "R1112" cells, I have none that even cleared 1000mAh. However, I've had quite some luck with the "M32A"s, got quite a few above 2000!