I charged 2 Energizer 2500 rechargeable batteries in my Opus 3100 charger at500mil as usual and when finished the button end was somewhat ballooned and now won't fit in the scanner ... Never saw this happen before....There date was 9/19 ......
Sounds like a heat expansion problem, like the battery might've been charged too fast (500 mil sounds pretty high)...how hot did it get during charge?I charged 2 Energizer 2500 rechargeable batteries in my Opus 3100 charger at500mil as usual and when finished the button end was somewhat ballooned and now won't fit in the scanner ... Never saw this happen before....There date was 9/19 ......
That's what I was getting at! The Opus 3100 is a dual voltage charger that claims to auto detect 1.2 or 3.7 volt cells which if done correctly, would work but I myself would never trust it not to ever make a mistake.would you be charging a 1.2 volt battery in a 3.7 and 4.35 volt charger ???????
the 3100 says it is to charge 18650 batteries....!
You found some more specs that I missed in my searches!1. Intended Use The product is intended to charge and discharge NiCd, NiMH or 3.7v Li-ion rechargeable batteries in size type of 16340, 10440, 14500, 16340, 18500, 18650, 26650, 26500
The charger can charge batteries of different type and size and with different capacity at the same time. It also integrates the minus delta voltage (-ΔV) for NiCd or NiMh battery charging termination, and for Li-ion batteries charging to 4.2V
and the unit will turn off when a cell reaches 140 F...toasty.
Yep, I noticed the same thing about specs showing different at different sites. I kinda figured that may be due to the unit having different firmware (hardware)versions when tested at different sites.some of the ads do say AA and AAA, but do not show them in the specs ??? i am checking now...
aliexpress does show them.
Not necessarily: for example in radio design, where radios are getting increasingly compact, there's not as much room on the rear as there used to be for heat sinks, long transmissions make adding fans almost mandatory...Sounds like a bad design if it needs a cooling fan.