Best charger for Eneloop Cells ?

Hi all,

I am looking to pick up some AA Sanyo Eneloop batteries.

I currently have this charger: http://www.7dayshop.com/7dayshop-intelligent-and-super-fast-aa-aaa-battery-charger-600lcd?backUrl=L2NhdGFsb2dzZWFyY2gvcmVzdWx0Lz9xPWJhdHRlcnkrY2hhcmdlcg==

It is classed as a Fast charger and says it will charge 4x AA cells at 500ma

I don't want to damage the cells and I am worried the above charger is not suitable. Any thoughts on it ?

Should I get a better battery charger ?

Which is the best, reasonably priced, charger for them ?

Technoline BC700/900
Maha MH-C9000

Thanks.

I have seen some people on here use a Turnigy tocharger. I have something similar, see below.

How would I use something like what I have to charge ?




The Pro-Peak Mercury EX from Ripmax heralds a new era in simple-to-use feature packed charger technology.

Main Features Include:
€¢ Delta Peak detection/Zero current voltage check
€¢ Fast charge/discharge: 1~25 Cell NiCad/NiMH packs
€¢ 2~12v Lead Acid batteries, 3.6~11.1v Lithium batteries
€¢ 100~5000mA fast charge current
€¢ 20 watt discharge rate
€¢ User definable memories for: battery pack type, number of cells, capacity, charger/discharge currents
€¢ 2 line LCD display
€¢ On line charge/discharge status check
€¢ Audible alarm function
€¢ Integral cooling fan
€¢ DC 12v input voltage
€¢ Reverse polarity protection

I use the Nitecore i4, seems to work well

Best would be the MAHA C9000
But just for basic charging many would do the job fine.

500mAh for eneloops is fine, I charge mine at twice that sometimes.

The charger looks fine for an AA charger.

I have just started testing a more advanced AA charger, the only result I have now is that it uses -dv/dt detection (This is better than NiteCore). I will be a few weeks before I am ready with the review (I do have some other that needs publishing first).

My top 3 choices are:-

1. Maha C9000
2. Sony BCG-34HRE
3. Maha C800S

Maybe is just me, that the Nitecore i2/i4 that I have, charges Ni-MH a bit too hot to my liking

Thanks. So can I assume my existing "Fast Charger" that charges 2xAA at 1000ma and 4xAA at 500ma will charge the Eneloops fine ?

The Sony seems to be a similar spec to my existing 'Fast Charger' so I guess mine should be fine

It should be fine for now, but a MAHA C9000 would be a nice xmas gift to yourself in the future if you can spare the money down the road. :stuck_out_tongue:

I use the La Crosse BC-700 that comes pretty highly recommended on amazon

Digital display and 4 channels for only $35 bucks

It is a nice feature to be able to charge one cell at a time (or 3 if convenient). The charger in the OP seems able to do this. (You might have a single cell light.)

The Sony BCG-34HRE seems only capable of charging 2 or 4 cells. Edit: It will charge 1, 2, 3, or 4 cells.

Yes, the one I have has discrete charging circuit for each cell which means you can charge just one battery

I bought some Eneloops at Costco. They came in a combination pack wiith the Sanyo model NC-MQN06U charger.

http://us.sanyo.com/dynamic/product/Downloads/4_Position_Charger_IS-4508168.pdf

The Sanyo charger charges 2/4AA at 300ma, and 2/4AAA at 150ma. I guess the moral to this story is that the Eneloop cells will take a range of charging currents.

Eneloops seem pretty hardy but I wouldn’t want to leave them in one of those dumb wall chargers. I like my Angeleyes charger (see my review). It’s not the quickest (my Soshine SC-F3 can charge an AAA eneloop in an hour @ 800mA) but it can discharge, refresh, shows capacity etc. and stops when charged.

If I was charging eight cells every day I’d simply get another Angeleyes. Best is relative to your needs and budget.

Maha C808-M.

If you ever want to charge C or D, then you don’t have to buy another charger. It’s 8 bay for AA, AAA, C, or D.

http://www.amazon.com/Maha-Powerex-MH-C808M-Cell-Multi-Charger/dp/B000E65DG6/ref=sr_1_4?s=electronics&ie=UTF8&qid=1369334248&sr=1-4&keywords=maha+charger

+1 for many of the Maha chargers. The La Crosse smart chargers are similar to Maha 9000 but the Maha tends to get better reviews.

The Maha 8xxx and 9000 series of chargers are very good, having adjustable charging current and discrete channels for each cell, as well as many other functions. Ideally you want to charge NiMh cells at .5C to .8C to provide a nice delta V signal to tell the charger when to terminate the charge.

Lower powered chargers that only charge at ~500mA will work fine for younger cells in good condition, but as the cells age they need a higher charge rate to provide a good delta V signal to the charger.

Your hobby charger can charge one or more NiMh cells in a serial configuration, but if you use the cells in different combinations in different devices they will age differently and a dedicated multi-bay charger will be better for them.

OK, thanks. I have my Hobby charger which I will try out once I get a battery holder to use with it. It should be good for discharging and refreshing the batteries.

It seems the cheap 'Fast Charger' I have might do the job as an addition to the Hobby charger.

It has discrete circuits for each of the 4 charge slots (so you can charge 1, 2 3 or 4 batteries) and will charge 4 at 500ma. As they age, I can charge 2 at a time to get a 1000ma charge.

Saves me some money too ;)

I’m surprised it took 10 posts for anyone to mention the La Crosse BC-700. I’m also surprised that so many people recommend the MAHA C9000.

For the purposes of charging, testing, reconditioning, and other common needs, they’re more or less the same. However, the BC-700 costs less than half as much, is smaller, displays more info at once, and requires far fewer key presses to access the same functions. I mean, like, maybe 6 keypresses versus 150.

I already mentioned the BC-700 in the first reply :wink: In Germany its sold als “Technoline” - The BC-700 seems to be a OEM devices under many different labels… So you get this thing from “Voltcraft” too.