BACKGROUND:
I wanted a NiMH AA/AAA charging system that would remove the "mystery-of-the-charge" and provide more confidence in the rechargeable batteries I purchase. So, I did a little research like everyone does (or should do) before buying an item that's intended to last for years (find "The Best (aa/aaa)Charger Guide by John Dziadecki on Amazon - excellent read). I decided to buy two 4-packs of Powerex AA 2700's and two of Powerex AAA 950's to supplement some Duracell 2650's, Kodak 2550's, Energizer 2500's and an assortment of generic 2300's. I also bought two chargers: the MH-C9000 and the MH-C800S.
For years I've used an assortment of chargers with idiot lights. I had no idea HOW MUCH of a charge those batteries were getting or whether they really held the advertised capacity. But, it was very clear (and frustrating), that some of these batteries and/or chargers were very limited (junk?). I'm not sure how many times I installed newly charged NiMH batteries into a digital camera only to have the low battery icon show up after a couple shots: "Hmmmm...how many of these batteries are duds?" And, generic battery testers really don't tell you much, i.e., how 'good' is "Good"; How 'low' is "Low"? .....So, it took me a while to get fed up.
MH-C9000 Charger:
This thing definitely took most of the guess-work out of my rechargeable AA/AAA energy supply. I was able to get rid of six old NiMH AA's in the first week and "rescue" seven others with this charger. The directions with the charger are a little sketchy but, if you know the advertised capacity of your battery and its age, you'll be able to figure out how to best charge it and how many mAh's are available to you afterwards. You'll also be able to determine if the battery is shot. This isn't something you get to do with idiot-light chargers (which work just fine for lots of people). I remain very impressed with this charger.
MH-C800S Charger:
I bought the MH-C800S to supplement the -C9000 because of its 8-battery capacity. This charger does not provide battery capacity values at the completion of a charge cycle. It does however, have a 16-hour 'conditioning mode' designed to re-juvinate and cycle (discharge and recharge) batteries: it works very well. If you don't care about actually 'seeing' the specific capacity of your batteries, the MH-C800S is a good choice at the right price. It too will tell you if your battery is shot. This charger is all that most people will need or want for AA and AAA re-chargeables.
CAPACITIES:
I have not used Powerex re-chargable batteries long enough to comment on their discharge rate. But, thus far I haven't seen a difference between my older 2300 and 2700 mAh re-chargeables and the Powerex batteries. It's also too early to determine if the Powerex batteries will last through 1000's of charges.
The Powerex AAA batteries have an advertised capacity of 950mAh. They charged out between 956-967 in the MH-C9000's "Break-In" mode. Allowing for heat attenuation, full capacity is about 920. I'll know more when I recharge them.
The Powerex AA batteries have an advertised capacity of 2700mAh. They charged out between 2556-2650 in the MH-C9000's "Break-In" mode. Allowing for heat attenuation, full capacity might be about 2300. I'll know more when I recharge them.
Some of my older batteries charged out at significantly higher rates than advertised after putting them through the MH-C9000's "Refresh and Analyze" mode: these older batteries are holding charges longer and they discharge more consistently. I can tell that those instances of partially-charged batteries screwing up the camera's current requirement will be fewer. At least now, I'll be able to sort out the weak, lame and starving in the herd.
SUMMARY:
Of course, there are other ways to do what I did. The Powerex battery purchase was based on the charger purchase: I figured it best to stay with a certain brand and keep the system homogenous. Not necessary at all. The price was right for the batteries and they came with convenient storage cases. In time, if Powerex batteries don't perform well, I'll probably start replacing all my batteries with an assortment of Sanyo Eneloops. I'm in the process of learning what a good rechargeable AA/AAA battery really is.
There are several other chargers that perform similar to the MH-C9000 and -C800S: LaCrosse, Sony, and/or Sanyo. Reviews for the Powerex MH- products appealed to my technical comfort level and budget. Good stuff!
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This Item  Powerex MH-C800S 8-Cell Smart Charger for AA / AAA NiMH / NiCD,Grey |  |  |  |  |  | |
| Price | $44.95 | $29.99 | $54.99 | $59.30 | -37% $18.99 List: $29.98 | $23.99 |
| Delivery | Get it as soon as Tuesday, May 14 | Get it as soon as Tuesday, May 14 | Get it as soon as Tuesday, May 14 | Get it as soon as Thursday, May 16 | Get it as soon as Tuesday, May 14 | Get it as soon as Tuesday, May 14 |
| Customer Ratings | ||||||
| Easy to use | ||||||
| Battery life | ||||||
| Easy to read | ||||||
| Value for money | ||||||
| Sold By | Amazon.com | EBL official | ISDT | DC Workshop | BONAI | Tenergy Corporation |
| input voltage | 120 volts | 9 volts | 12 volts | 240 volts | 9 volts | 240 volts |
| battery charge time | 2 hours | 8 hours | 90 minutes | — | 6 hours | — |
| weight | 0.22 kilograms | 0.74 pounds | 0.62 pounds | 0.65 kilograms | 12.3 ounces | 145 grams |
From the manufacturer
Feature Highlights
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This charger has 8 independent charging circuits capable of charging 1-8 AA/AAA batteries in any combination.** The charger has a large LCD screen that shows the charging status of each battery. |
This charger has a special conditioning mode that charges, deep-discharges, and then recharges your batteries automatically in order to offer maximum rejuvenation. |
Rapid charge is the default charging mode and will fully charge your batteries at a fast rate of 1-2* hours. Soft charge increases the life of your batteries and will charge your batteries at a lower rate of 3-4* hours. |
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| MH-C800S | MH-C801D | MH-C808M | |
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| Customer Reviews |
1,194
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422
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| Price | $44.95 | — | $99.95 |
| Supported Batteries | AA / AAA | AA / AAA | AA / AAA / C / D |
| Number of Cells | 1 to 8 | 1 to 8 | 1 to 8 |
| Supported Battery Chemistry | NiMH / NiCD | NiMH / NiCD | NiMH / NiCD |
| Charge Time | 1-2 Hrs (AA in Rapid Charge)* | 1 Hr (AA in Rapid Charge)* | 1 Hr (AA in Rapid Charge)* |
| Charge Rate | 1000 mAh | 2000 mAh | 2000 mAh |
| Battery Conditioner | Yes | Yes | Yes |
| Soft Charge Mode | Yes | Yes | Yes |
| Display Type | LCD | LCD | LCD (Backlit) |
| Power Supply | 100-240V | 100-240V | 100-240V |
| Car Adapter | No | No | No |
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How GOOD is the Smart Charger for AAAAA NiMHNiCD ?
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Reviews with images
Excellent functionality/value - Lousy display
I have owned one of these for nearly 15 years (made under the Maha name brand) and until recently it worked flawlessly. The old one began to overheat the batteries a couple months ago so I bought this new one. It is identical in every way to the old one, but the price is about a third of what I paid for the old one.If this unit lasts even half as long as the old one it will still be an excellent buy.My only complaint is the LOUSY display. The contrast is terrible and what you see in the display is greatly influenced by the angle from which you view it. With a bit of tilting back and forth you can always figure out what's it's trying to indicate, so it's not totally useless.CONCLUSION: Even with its terrible display it is an excellent charger and it will give your batteries a great/full charge AND excellent life.
Top reviews from the United States
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Reviewed in the United States on February 5, 2013
Style: Charger with 8 AA battery kitVerified Purchase
Top reviews from other countries
Usuario
Exelente todo actualizado 2017-2019
Reviewed in Mexico on December 26, 2017Style: Charger onlyVerified Purchase
Josh
Richtige Prioritäten
Reviewed in Germany on October 12, 2018Style: Charger onlyVerified Purchase
Josh
Reviewed in Germany on October 12, 2018
Einzig der weniger gut ablesbare Display stört ein wenig. Aber das tut mir nicht im geringsten weh.
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Client d'Amazon
Je l'adore
Reviewed in France on December 8, 2018Style: Charger onlyVerified Purchase
Diego Barone Lumaga
Ottimo caricabatterie per stilo e ministilo.
Reviewed in Italy on May 2, 2017Style: Charger onlyVerified Purchase
