I recently purchased Ultrafire rechargeable batteries...

[ngerasimatos]

I recently purchased from Amazon a pack of 10PC UltraFire 16340 CR123A LR123A 3.6V 1200mAh Rechargeable Li-Ion Battery USA. They seem to work decently well for the price however I noticed that the battery door doesnt seem to close entirely. With the regular (included) Engergizer batteries the door closes fine. I compared the size and shape of batteries and they seem to be the same. Any ideas? Has anyone else seem similar issues? 

[TomMac]

> I compared the size and shape of batteries and they seem to be the same. Any ideas? Has anyone else seem similar issues? <

Yes... that's why in the thread on rechargeable, it's mentioned that be careful of what you buy as the manfufactors's spec for size does has variables in it ( normal).

You'd really have to put a caliper on the battery to measure accurately.

Of note, the GTLs, Ultrafires ( both 2300mahr ) and Tangsfire @1000mahr fit fine.... all it takes is a mm or two extra for a tight fit.

BTW, i can also tell you  that they will not come out to the listed ratings of 1200 mahr... all of the batteries out of china are HIGHLY over rated in power.

I have not yet seen a 16340 cell that has more than half the OEM cell ratings.

[JamesC · Accepted solution]

I would like to thank you for your posts and contributions! I want to make sure you take a look at an article outlining best practices when it comes to batteries. For those involved in this discussion I encourage you to review Remember these golden rules for your Arlo camera batteries along with BATTERY WARNINGS AND SAFETY.
 
Thank you for sharing! 
 
JamesC