Decent charger for Eneloops

Phaetos

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I have made the decision to move all my AA and AAA to Eneloops. I love the batteries, but don't like the 7 hour recharge time from the pack charger. Now, I am moving into this slowly. I don't think I need a Maha-900000000 to charge, discharge, recharge, drop charge, then cycle and charge again. I see no point in it. I just want some suggestions for reasonably priced, < $40, quick charger for these cells. Let the battle begin :popcorn:
 

Phaetos

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Thanks for the heads up. I'll look into that one. Seems to have a lot of features that the much more expensive brands do, but for much less. Does it really do a conditioning cycle?
 

SunnyQueensland

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This seems similar to the one above but with a car adapter included and it looks like it feeds more current to the cells which will mean faster charging. It even has the same refresh function.
 
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Turbo DV8

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This seems similar to the one above but with a car adapter included and it looks like it feeds more current to the cells which will mean faster charging. It even has the same refresh function.

Update: I bought one.

That one will only charge two AAA cells. It actually charges at a slightly lower rate than the "Sony." Comparing the two chargers and the label on the back of one, I would say that both chargers will charge a single AA cell at 2 amps. The more I compare these two, I keep thinking, "too bad the slightly more expensive one only charges two AAA cells instead of four like the other one", because it does have an advantage in that it is the only one that will run off of included 12v plug.

Does somebody know what the discharge rate is on refresh?

Wondering if, say, four AA cells are placed on charge at 525 mA, as they terminate one by one does the charge current go up on the remaining cells to 1050 mA, and then 2 A on the last cell? From the way the charge current is dependent on the number of cells, it may appear so.


But like someone said already, if you can and want to spend $40, go for the La Crosse BC-900. It is much more versatile and informative than these chargers, and leaves no questions what each cell is doing exactly.
 
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mudman cj

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I bought a Maha MH-C204W here for about $30 that I use with my Eneloops. It charges at up to 2 amps for a one hour charge time with two cells and claims to pack more energy into batteries than most chargers during that time. I haven't tested this claim, but I respect Maha enough that I let it sway my purchasing decision. I don't get paid to say this or anything, but it uses a special charge ramping profile with a series of stages to very nearly fully charge the batteries when the light turns green in an hour (or 2 hours for 4 batteries). Other chargers can achieve the same effect, but that means trickle charging overnight. IIRC it makes a difference of around 15% in usable capacity at green light time, but it depends on the charger to which you compare it.
It also has a battery rejuvenation program for batteries that have seen >10 recharge cycles and are starting to show reduced capacity. I haven't performed anything scientific enough to report on its effectiveness, though I have used it.
 
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Lite_me

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I realize that the charger gurus here can not test every charger on the market, but can these inexpensive chargers be as good as, say, the Maha line of simple chargers? One has to wonder.
 

bp044

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I bought a Maha MH-C204W here for about $30 that I use with my Eneloops. It charges at up to 2 amps for a one hour charge time with two cells and claims to pack more energy into batteries than most chargers during that time. I haven't tested this claim, but I respect Maha enough that I let it sway my purchasing decision. I don't get paid to say this or anything, but it uses a special charge ramping profile with a series of stages to very nearly fully charge the batteries when the light turns green in an hour (or 2 hours for 4 batteries). Other chargers can achieve the same effect, but that means trickle charging overnight. IIRC it makes a difference of around 15% in usable capacity at green light time, but it depends on the charger to which you compare it.
It also has a battery rejuvenation program for batteries that have seen >10 recharge cycles and are starting to show reduced capacity. I haven't performed anything scientific enough to report on its effectiveness, though I have used it.
Crazy question. I need to charge 8 Eneloop AA's at the same time. Would the two C204W chargers give me a more complete charge at a cost of of $60 vs. $68 for a single maha c 801d ?
Or is the 801 a better charger? Honestly the $ 8 saving is not that important if it it is better .Can any one tell me the answer
 

Grog

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If you need to have a compact charger, two smaller ones could be a good idea. If it were me, out of those two choices I would buy the 801......
 

mudman cj

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Two C204W chargers would be able to more fully charge batteries according to this article. He measured 99% charge after about 4 hours with the C204W and about 92-93% regardless of time for the 801 in fast mode or 95-96% in slow mode (doesn't say how long).

Other points:
-The C204W can't recharge NiCd, while the 801 can.
-The C204W can only charge 2 or 4 cells, not 1 or 3, while the 801 can charge 1 or 3.
-The C204W is better at reviving 'dead' batteries that other chargers refuse to charge, including the 801.
-The 801's slow charging mode is more gentle than the fast charging of the C204W, but the C204W doesn't get batteries nearly as hot as most other fast chargers. Excessive heat is responsible for battery degradation.
 

Bones

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I'm with the C-801D contingent on this, with the most decisive factor being the lack of independent channels on C-204W.

Cells invariably discharge at different rates, and when forced to charge in pairs, the cell that starts with the most charge is going to be cooking from the time it is fully charged until the other cell catches up.

Consequently, every time you charge a pair of cells in the C-204W, you are going to be inflicting an unknown degree of unnecessary stress on one of them.
 

Phaetos

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Ok, so sell me on either the Lacrosse Bc-900 or the Maha MH-C204W. What difference is there, in plain easy to understand English?
 

bp044

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I'm with the C-801D contingent on this, with the most decisive factor being the lack of independent channels on C-204W.

Cells invariably discharge at different rates, and when forced to charge in pairs, the cell that starts with the most charge is going to be cooking from the time it is fully charged until the other cell catches up.

Consequently, every time you charge a pair of cells in the C-204W, you are going to be inflicting an unknown degree of unnecessary stress on one of them.
Thanks to mudman cj and Bones for giving me excellent advise.
If i am only using Eneloop AAA'ss there any benefit in going for the extra 20 bucks and upgrading from the c-801d to the c-808m
 

Grog

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Thanks to mudman cj and Bones for giving me excellent advise.
If i am only using Eneloop AAA'ss there any benefit in going for the extra 20 bucks and upgrading from the c-801d to the c-808m


Well if you think you'll need to charge C or D cells, it might be a good idea. It's a bit bigger, but if you can deal with that and have the money, it's not a bad idea.


Here are some comparison pics.....

808vs801.jpg

808vs801side.jpg
 
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Bones

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If i am only using Eneloop AAA's there any benefit in going for the extra 20 bucks and upgrading from the c-801d to the c-808m

There doesn't appear to be any advantage to upgrading to the C808M as long as you're only charging AA and AAA cells bp044.

In fact, if you would be satisfied with a 2 hour charge as opposed to having the option of choosing between a 1 hour (fast) and a 2 hour (slow) charge, you may even wish to consider the less expensive C800S.

The only significant difference appears to be the C801D has a heavier duty power supply to provide the faster charge.

The following quote from the MahaEnergy site explains the difference:

The soft charge delivers the highest battery life and allows 100% compatibility with older, lower capacity batteries.

The fast charge allows eight batteries to be fully charged to their maximum capacity in around one to two hours!

It seems we are always forced to decide between what we need for the immediate future, and what we will need further down the road.

The only certainty is that the technology coming down the pipe will most assuredly be both better and less expensive.

The following are hyperlinks to the manufacturer's pages for the three chargers mentioned above, with the last being a direct comparison between the C801D and the C800S:

http://www.mahaenergy.com...MH-C808M

http://www.mahaenergy.com...MH-C801D

http://www.mahaenergy.com...MH-C800S

http://www.mahaenergy.com...8COMPARE
 
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