A comparison of rechargeable batteries - Page 1
Forum section: electronics / projects

author: texaspyro
author_rank: Super Contributor
timestamp: December 27, 2019, 01:45:54 am
content: This guy does lots of independent tests/compaisons of various products. His tests are usually very well thought out and implemented.Here he tests rechargeable AA batteries:And another test:https://www.youtube.com/watch?v=0A1GvQ40j0Q&frags=pl%2Cwn

author: BravoV
author_rank: Super Contributor
timestamp: December 27, 2019, 02:12:11 am
content: Similar long term test ->http://aacycler.com/

author: retiredcaps
author_rank: Super Contributor
timestamp: December 27, 2019, 03:40:31 am
content: I discovered his channel a couple of weeks ago when I was looking at car jump starter packs. That lead me to the ni-mh above and some others that I found interesting.He claims not to accept any products and uses his own money to buy everything.His voice does take a bit getting used to.

author: texaspyro
author_rank: Super Contributor
timestamp: December 27, 2019, 03:42:44 am
content: Quote from: retiredcaps on December 27, 2019, 03:40:31 amOoooh, the Audew 1500 rocks... I also have their tire pumps (very small).

author: retiredcaps
author_rank: Super Contributor
timestamp: December 27, 2019, 03:47:24 am
content: As for best AA/AAA ni-mh, I have stash of Eneloops (or rebranded equivalents like Ikea Ladda, Duracell pre-charge) and some cheap no name batteries.All the early generation of non LSD ni-mh have lost 30 to 50% of their capacity.Only the Eneloops have stood the test of time. One AA pair has goine through 800+ charge cycles and still hold near their 1900mAh rating.I'm happy with the Ikea Ladda (made in same factory as Eneloops) and they cost less $$$ than the Panasonic Eneloop.I think the Eneloops may outlast me.PS. I only buy the Made in Japan Eneloops or their rebranded equivalents.

author: retiredcaps
author_rank: Super Contributor
timestamp: December 27, 2019, 03:57:03 am
content: Let's not forget HKJ here when it comes to comparison of rechargeable batteries ...http://lygte-info.dk/

author: BravoV
author_rank: Super Contributor
timestamp: December 27, 2019, 04:10:21 am
content: Quote from: retiredcaps on December 27, 2019, 03:47:24 am+1 , Eneloop fanatic here.Have a close friend which is a frequent flyer to Japan, he was/is my source of genuine and Japanese manufactured Eneloop cells. To spot cells that sold for Japanese market, its very easy to tell as Japanese characters were printed all over space at the battery's jacket and packaging.Some Pro type I bought in few years ago.

author: MWP
author_rank: Contributor
timestamp: December 27, 2019, 05:40:19 am
content: It seems Eneloop's do not like high current draw at all.I killed a brand new set of Eneloop Pro's (black) in a camera flash after about 5 full power flashes.They made a crackling sound, and then were dead.The Energiser 2300's have no problem with that same flash though and have been going strong for years.Something to keep in mind for high current draw applications.

author: BravoV
author_rank: Super Contributor
timestamp: December 27, 2019, 05:46:20 am
content: Quote from: MWP on December 27, 2019, 05:40:19 amCommon Eneloop (white jacket) falls into low self discharge and also low current draw category, an exception is Eneloop Pro (black jacket) that is designed for high current application, but comes with a catch, as other high drain cell does, which is relatively high self discharge.

author: floobydust
author_rank: Super Contributor
timestamp: December 27, 2019, 06:09:07 am
content: I find Ikea Ladda different than Eneloops, the charging voltage curve is different. I get better performance with white Eneloops.Eneloop Pro has a shorter (500 cycle) lifetime, hold up to 85% of their charge for up to 1 year. Whites are (2,100 cycle), hold up to 70% of their charge for up to 10 years.

author: BravoV
author_rank: Super Contributor
timestamp: December 27, 2019, 06:13:17 am
content: Want to hold charge much longer than Eneloop white, use Eneloop Lite (blue jacket), of course, with much more lower capacity and even lower drain capability. I used in all my wall clocks and remotes, rarely charge them.Just hate alkaline cell.

author: MWP
author_rank: Contributor
timestamp: December 27, 2019, 01:27:24 pm
content: Quote from: BravoV on December 27, 2019, 05:46:20 amI found otherwise. They destroyed themselves with a high current load.

author: ConKbot
author_rank: Super Contributor
timestamp: December 27, 2019, 02:39:52 pm
content: Just how high current of a load? Even the eneloop whites aren't exactly a slouch for most applications. I get that camera flashes are probably the worst in terms of consumer applications, as cycle time needs to be short. But I'd still expect them to just have a low capacity, or even just fall flat on their face, not self destruct.

author: MWP
author_rank: Contributor
timestamp: December 29, 2019, 04:29:51 am
content: I did measure it a while back. It was around 15 amps.

author: Mechatrommer
author_rank: Super Contributor
timestamp: December 29, 2019, 05:07:39 am
content: i have 2 sets (4xAA each set) of white eneloop since 2011 (yes i keep the purchase record), in 2014 i bought another 2 sets because i was afraid the 2011 sets will die soon (as many other different brands (including Energizer and PowerEx that died long time ago) and knock off), i was wrong. the 2011 sets still work until today, and the 2014 sets mostly sit in their packaging from the time they are purchased. only to be taken out when i need all my 4 flashes to work at a time (usually at near year end). they only for camera flashes (Canon) application and about nothing else. i charge them with MAHA POWEREX MH-C801D (soft/slow charge mode mostly if i dont need urgent) about the same age as 2011 sets, and later not long after, i bought MAHA POWEREX MH-C9000 (used in OP) if i need any of them to be reconditioned (and charging if i need more than 2 sets charged at a time). fwiw..