Test/review of UltraFire 18350 1100mAh (Black-red)

[size=+3]UltraFire 18350 1100mAh (Black-red)[/size]



Official specifications:

• Battery Capacity (Mfg Rated): 1100 mAh
• Battery Chemistry: Li-Ion
• Battery Feature: Rechargeable
• Battery Form Factor: BRC 18350
• Battery Rated Voltage: 3.7 V

The protected 18350 from Ultrafire in their new style.











Discharge curves looks very good, the cells tracks nicely and can deliver 7A, at 10A the voltage is a bit low.



















[size=+3]Conclusion[/size]

It looks like Ultrafire has got their hands on the best 18350 batteries around and then added a protection. The protection will increase voltage drop at high current.
If they keep making the battery this way it will be a good battery.


[size=+3]Notes and links[/size]

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
Comparison to other LiIon batteries

Looks like Keeppower may be using the same cell in their protected 18350:

http://www.keeppower.com.cn/products_detail.php?id=566

Rated at 8A and 1150mAh.

And perhaps the same cell, without protection:
http://www.keeppower.com.cn/products_detail.php?id=567

Rated at 10A and 1150mAh.

Maybe adding protection to the ASPIRE IMR 18350?

HKJ said:

...If they keep making the battery this way it will be a good battery….

Click to expand...

Is Ultrafire known for switching cells? I know Efest has been caught several times changing the cell on some of their batteries.

Now that Aspire has discontinued their 1100mAh IMR18350 battery, it is good to see alternatives from Ultrafire and Keeppower

SubLGT said:

Is Ultrafire known for switching cells? I know Efest has been caught several times changing the cell on some of their batteries.

Now that Aspire has discontinued their 1100mAh IMR18350 battery, it is good to see alternatives from Ultrafire and Keeppower

Click to expand...

Ultrafire is known for very variable quality under the same wrapper, this may be because multiple vendors make the same cell (with the same wrapper) or it might be because they switch cell.

SubLGT said:

Is Ultrafire known for switching cells? I know Efest has been caught several times changing the cell on some of their batteries.

Now that Aspire has discontinued their 1100mAh IMR18350 battery, it is good to see alternatives from Ultrafire and Keeppower

Click to expand...

That is NOT true. I just got an email from my hometown dealer[Liionwholesale.com] and here is what he had to say ....

Cap, please edit your post above, with regard to Rule 12 ...

Reposting Private Communications

It is not appropriate for any member of CandlePowerForums to post and/or quote in the open forums any part of a private communication that is authored by someone other than themselves. This includes, but is not limited to, emails and private messages. Private communications, for these purposes defined as anything that is not originally posted in the open forums, are just that - private. The author has a reasonable expectation of it remaining so. CandlePowerForums honors and respects that and unless there are certain exigent circumstances (determined by a member of the CPF staff), you will be asked to remove the material in question and/or it will be removed for you by a member of the CPF staff. Depending on the severity and/or repetitiveness of the offense, posting privileges can be removed temporarily or permanently.

Paraphrasing and/or presenting a condensed version (summary) of private communications is perfectly acceptable. Direct Quotes (copy and paste) are NOT acceptable in the open forums unless all authors agree in the open forum to waive claims to privacy.

Thanks in advance

Capolini said:

That is NOT true...

Click to expand...

Hmmm, several people over at BLF have reported that it has been discontinued, and that they were unable to buy some. But availability in the USA seems to be very good. Maybe much harder to find in Europe and China?

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