Test/review of Sanyo UR16650ZTA 2500mAh (Magenta)

Batteries and Chargers Rechargeable Batteries
1

Sanyo UR16650ZTA 2500mAh (Magenta)







Official specifications:

  • Rated capacity: 2330mAh

  • Minimum capacity : 2380mAh

  • Typical capacity: 2500mAh

  • Nominal voltage. 3.7V

  • Charging voltage: 4.35V

  • Charging current: 1190mA



Test at 4.35V charge voltage



This battery size matches two CR123 batteries in diameter and length, but has lower voltage. In some cases it is a very good replacement.










The cells match fairly well and can deliver 5A, but not 7A.















Test at 4.30V charge voltage



Reducing the charge voltage means about 80-100mAh less capacity.

















Test at 4.20V charge voltage



With a regular 4.20 volt charger the capacity is reduced 260-280mAh.



The cell needs to warm up before it can handle a 5A discharge.















Conclusion

This cell cannot match a 18650 cell, but when the slightly lower diameter is needed it is a good cell.



Notes and links

How is the test done and how to read the charts
How is a protected LiIon battery constructed
More about button top and flat top batteries
Compare to 18650 and other batteries
2

Has Sanyo discontinued this cell?

I am having trouble locating a supply in US

Thx…

3

Not sure if you are interested in this or other similar cell, but:
Vapcell INR 16650 2000mah 8A M20 (tested here: Test/review of Vapcell INR16650 2000mAh M20 (Gold) 2020)
11.47€ |Freies verschiffen Vapcell Original INR 16650 2000mah 8A M20 Wiederaufladbare Li ionen batterie lithium batterien für taschenlampe power tools|Wiederaufladbare Batterien| - AliExpress

Sanyo 3.7V 2500mAh UR16650ZTA 16650 (seems to be out-of-stock, but contact the seller and ask them about this cell. I did it and the managed to sell me 2 of them)
https://www.aliexpress.com/item/32404173077.html

4

A nice cell for those who can’t (or won’t) bore out their SureFires to 18.6mm.

It’s not a high drain cell, but that does not matter because SF’s are not good in shedding heat.
And their standard tailswitch is already at risk at 3Amp.

Nevertheless, yet another thorough reviev by HKJ. Thanks!

5

Vapcell INR 16650 are available locally. It’s my best (only) option, and fastest way to get cells. Illumin Supply here in US has Vapcell in stock

Thanks for links MascaratumB!

I will inquire to the Ali seller about the Sanyo

6

Hi

Hello, 16650ZTA has limited stock now, but it was produced in 2017

The unit price is very expensive

Vapcell M20 16650 is recommended with low price :slight_smile: