Sanyo UR18650A Cell Specifications

LithiumSolar

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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:2.50V Cutoff
420mA Standard
--- mA Maximum
Description:Red Cell Wrapper
White Insulator Ring
18650 Form Factor


Data References:
https://na.industrial.panasonic.com...files/panasonic-li-ion_ur18650a_datasheet.pdf

Pictures:

image_etywww.jpg image_hmbwvw.jpg image_qboyvk.jpg image_cgtxum.jpg
 
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Mago_Kabal

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Recently tested a few of this (with white ring) and the capacity was above 2200mAh in many cases (used the LiiToKala lii-500)
 

thanar

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Feb 12, 2018
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I have been finding more and more of these cells lately, with purple ring allright, but with no "UR18650**" text whatsoever. There only is "SANYO R1112 N41B" on the sample I have on hand right now. The lenovo pack it came out from claims 11.1V and 48Wh nominal, which calculates to 2162mAh nominal for the cells.
 

Wolf

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Mago_Kabal said:
Recently tested a few of this (with white ring) and the capacity was above 2200mAh in many cases (used the LiiToKala lii-500)

Yep I have the same results with the LiitoKala it reads at least 5% high.
If the IR of the cell is <55mΩ you will get good results


image_tefcnt.jpg\

Wolf
 
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S

Siraj ezzat

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Hi every one
I have some of these cells ,some of them when charged wont get above 3.9v and when I leave them a longer time on the charger they heat up and still the voltage remains at 3.9v
 

Antramx

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Siraj ezzat said:
Hi every one
I have some of these cells ,some of them when charged wont get above 3.9v and when I leave them a longer time on the charger they heat up and still the voltage remains at 3.9v

It looks like they have some kind of internal defect of some kind. I think I've come across 1 or 2 cells with similar problem. Just leave or recycle them, I recommend discharging them fully first. There is no point of keeping a cell that does not even charge to 4.2.
 

alex97

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hola a todos , una consulta estoy tratando de comprar la celda Sanyo, pero me di cuenta que mi pais no esta en la lista,
como lo puedo hacer para comprar? saludos desde Chile.

atte

Alex Cardenas
 

507PowerWall

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alex97 said:
hola a todos , una consulta estoy tratando de comprar la celda Sanyo, pero me di cuenta que mi pais no esta en la lista,
como lo puedo hacer para comprar? saludos desde Chile.

atte

Alex Cardenas

Alex, saludos

Te recomiendo sacar un buzon en miami, q ya son gratis en todos los paises
y comprar con esa direccion de miamiy de ahi te llega a chile

o ir a una empresa de reciclaje de electronica, ellos tienen muchas baterias de latops
:)
recuerda q las sanyo se calientan ....
para q lo tengas en cuenta

Carlos, Panama
 

donbright

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Feb 19, 2020
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i found some of these in an old HP Laptop battery pack.

the raised text UR18650A is very difficult to read. it has a suffix of R12A.

there is also light black printing on the side, which says A RCCAYMB , with a numerical code beneath, 081811, numerical code looks different on each cell.

There is another single letter "B" printed nearer the end of the battery by itself.


image_ayraya.jpg
 

Overmind

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It's easier to identify them by cap color and actual case color (fake red vs true red).
 

resr

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Oct 21, 2020
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Have 7 of these with R2112 serial number, charged 3 with one UR18650F mixed in a 4 cell charger (usb power bank M09)and UR18650A-s went scolding hot at 500mA charge current while been half way from fully charged._
 

daand12

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pid=\ said:
Have 7 of these with R2112 serial number, charged 3 with one UR18650F mixed in a 4 cell charger (usb power bank M09)and UR18650A-s went scolding hot at 500mA charge current while been half way from fully charged._
If you search google, this happens quite often on those.

Had this happening on a Packard bell battery, and now in my pulled Dell battery pack from 2012.
These are getting so hot that my SkyRC charger says these are to hot for charging.
I've set the temp now to max 50c and hopefully it does charge all the way to 4.20v with 1510ma charge current.


But i've had a heater from a Panasonic last night to, didn't know that. Had them on a refresh program and didnt look after during the night.



image_xcfjgt.jpg
Sanyo heater, same model as you mentioned. They were all discharged down to 2.5v @1a and then straight back to 4.20v with 1.51A.

I have two 2600mah sanyo's with Keeppower wrapper and they don't heat up at all.
 

resr

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Little clarification about different color rings: UR18650A's manufactured in Korea has white ring, but ones made in Japan has purple. Got both out of two Dell J1KND battery packs that stated the cell origin._
 

Hyraelle

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Dec 14, 2020
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I have a couple pictures for you all, i got some of these from modem packs.

The numbered stickers are mine. Here's all the info written on the shrink ; Sanyo UR18650A u52b QUKQXAY2 041186

The modem packs seller says those are not the heater sanyo's

Edit : i got a second modem with those. I noticed the bottom ( collector ) have 2 UL NCA etched on it.
 

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Wolf

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