Anybody know how to find the specs on scavenged Sanyo 18650?

[seestuff]

I decided to break into the battery pack of a HP laptop that I got a few years ago that was riddled with problems from the start (the laptop that is). The battery pack is HSTNN-DB17: 10.8V --- 43Wh. What I found inside was 6 Sanyo 18650 cells. Embossed lengthwise on the side is:

SANYO L
UR18650FH K07B



And if oriented sitting on end, there's dot matrix printing that reads:

C

KAUFH55
037859

6



I googled UR18650FH and found a site called asianproducts.com that sells Sanyo Li-ion rechargeables that look similar and with the same model #. But the listing title of the batteries is not consistent with the product specifications:
SANYO Lithium-ion Rechargeable Battery UR18650FH 2000mAh
Product Name : SANYO Lithium-ion Rechargeable Battery
Model : UR18650F
Norminal Capacity : 2400mAH
Norminal Voltage : 3.7V

The title and specs are conflicting.

Does anyone here know how to verify the specs with the info I've provided?
The battery pack has been sitting in my desk drawer for over a year. I got the cells apart and cleaned the terminals from where the tabs were spot welded with my dremel sanding drum. Then I charged them in my new Pila IBC. I tried one in my Zebralight H60w and it works. But I haven't tested any runtime with it.

 

[Kremer]

43Wh /10.8V = 3.98Ah

3.98Ah /2 parallel = 1.99Ah per cell.

2000mAh sounds about right.

That 10.8V pack rating is strange, based on 3.6V/cell, normally you'd see a 3S string rated as an 11.1V pack, based on 3.7V nominal per cell.

 

[seestuff]

Yeah, I thought the 10.8V rating was a little weird too.
Seems like 1900 to 2000 mAh is about right for these batteries.

I wondered if there was some sort of database with the specs on raw batteries from laptop packs.

 

[rmteo]

Yeah, I thought the 10.8V rating was a little weird too.

The nominal voltage of a LiIon cell is 3.6V - so nothing weird here.

 

[bshanahan14rulz]

You're lucky. All I have on my sanyos is the K07E marking and the printed characters. Top one is probably some sort of model number, bottom one is a date code. No UR18650_ anything on mine, so I can only assume or guess.

BTW, I know this is an old thread, but people searching may come across it. They might also find this link useful....
http://battery.sanyo.com/en/product/lithiumion_2.html

 

[FashlightFanatic]

You're lucky. All I have on my sanyos is the K07E marking and the printed characters. Top one is probably some sort of model number, bottom one is a date code. No UR18650_ anything on mine, so I can only assume or guess.

BTW, I know this is an old thread, but people searching may come across it. They might also find this link useful....
http://battery.sanyo.com/en/product/lithiumion_2.html

Awesome, thank you for this !!!! lovecpf

hmmm... I wonder why sanyo did not put any information in regards to the "H" for UR18650FH . Anyone happen to know what the "H" is for ?
They put the letter "F" >F: High capacity with steady operating voltage model.

I checked the weight of the sanyo UR18650FH I have and it came up to 43.5 g

I believe it is only 2000mAh but could this be the same thing even though the weight is different?

UR18650F​

3.7
2500/2600
18.1
64.8
47.0g​