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Lenmar MSCAA MACH 1 Speedcharger for AA and AAA Nickel Metal-Hydride Batteries | 
 enlarge | Brand: Lenmar
Category: Photography
List Price: $39.99
Buy New: $26.05 (On sale from $27.35)
You Save: $1.30 (5%)
New (15) from $26.05
Rating:  15 reviews
Media: Electronics
Autographed: No
Memorabilia: No
Shipping Weight (lbs): 2
Dimensions (in): 8 x 10 x 6
MPN: MSCAA
Model: Speed Charger
UPC: 029521556308
EAN: 0029521556308
ASIN: B00009R8GT
Availability: Usually ships in 4-5 business days
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| Features:
| • | Mach 1 Gamma 1 Hour Speed Charger Ni-MH AC/DC Kit with Neotherm Technology | | • | Neotherm Technology keeps Batteries Cool, Extends Battery Life and Internal Cooling Fan | | • | Charges One to Four AA and AAA Nickel Metal-Hydride Batteries | | • | Four LED Charge Status Indicator | | • | Includes four 2500mAh AA Nickel Metal-Hydride Batteries, Worldwide 100-240V AC Adapter and DC Car Cord |
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Product Description
Brain power. Mind energy. Electrifying thinking that generates new ideas and empowers people to search for advancements and refinements in today's high-tech energy sources. That's the kind of "revved-up" thinking behind Lenmar products. Whether it's batteries, camera and video accessories or cell phone batteries, binoculars or rechargers, Lenmar has a history of instilling each product with the power of performance.
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| Customer Reviews: Read 10 more reviews...
 worked ok at first... now unusable March 3, 2008
0 out of 1 found this review helpful
This product worked fine when I first bought it. Batteries charged in 1 hour, very convenient.
HOWEVER, after a few months I started having problems. I would charge the batteries for 1 hour, until the indicator lights indicated that they were fully charged. But when I tried to use the batteries in my camera, they depleted after only a few minutes of use. The batteries also depleted quite rapidly when not in use, they were dead after about one day unused.
I do not know whether the problem is with the batteries or with the charger, but this product is now unusable.
 A nice charger + 2500 mAh batteries in 2007 September 22, 2007
I ordered this package directly from Vanns to get same price but free shipping in August. The included AA batteries were 2500mAh. (Amazon needs to update its product description.) Having owned a non-durable Kodak charger and a super dumb Energizer charger, I finally own a smart charger at a low price. If you use NiMh batteries often enough, to avoid hassles and lengthen battery life, I recommend you get a smart charger that can (1) charge batteries individually, (2) charge up quickly within 1-3 hours (but not too quickly like the 15 minutes chargers), (3) trickle charge. You can spend 20 dollars for this smart charger or about 60 for a smarter smart charger (like La Crosse or Maha chargers). To me this charger is good enough, and it also came with a car adapter cord. It has a small fan to ventilate air to cool batteries when charging, which is a cheap old but very effective approach to lengthening battery life. The fan may be noisy if the charger is put on a hard surface. I put the charger on a soft surface such as a bag to eliminate the fan noise.
For a 2500 mAh battery, it takes the charger about an hour 15 minutes to charge and then the red light is off and it switches to trickle charge. For good batteries like eneloop batteries and the ones that came with the charger, the voltage was about 1.25 after red light is off and they are ready to use. I often take the batteries off 1-2 hours after the light is off, just to top off.
Charges Great and comes w/ 4 AA bats! July 5, 2007
this works great. It charges batteries really fast. I use the AA's for my canon dig. cam. I have 2 sets and they last for 100's of pics
Lenmar Mach 1 Gamma Speed Charger June 24, 2007
Bought this product about a year ago and have been very pleased with its performance. It is used to recharge AA NiMH batteries for my two digital cameras and generally recharges 4 batteries in an hour or less whether using house current or the DC adapter supplied with this charger when in my car. The charger has a built-in cooling fan which is said to prolong battery life and the charger shuts down automatically when the batteries are fully charged. Lots of good features for an attractive price in a seemingly very well-made product.
great charger with some annoying flaws March 1, 2007
This charger's main selling points are: 1. It has 4 separate and independent charging circuits, with each being able to charge 1 battery at a time, and 2. the batteries barely warm up during charging. Heat is what kills NiMH batteries, so the low temp feature is great.
The first unit I bought had two defective circuits that began to act up after a week of use, where it either did not terminate the charge or it would terminate far too prematurely. I should have returned it for an exchange, but didn't because I lost the receipt. Anyway, I bought a second unit and it has worked fine so far.
Besides the defective circuits, one minor nuisance with the design is that if you insert a cell in a slot the charging current would only come on if the cell is above some minimum voltage. For some of my NiCAD and NiMH cells, the cells sometimes experience temporary polarity reversal or very low voltage after a prolonged storage. No matter how many times these cells are inserted in the Mach 1 charger, the charging circuitry would not come on. I think this is a safety feature to insure that dead cells won't be charged, but it frequently weeds out batteries that are perfectly good but that for some reason either experienced a temporary voltage reversal or fall below the cutoff voltage. To charge these apparent duds, one needs a "dumb charger" that doesn't have the safety circuitry to first revive the cells to give them a positive voltage before putting them in the Mach 1.
Another negative with the Mach 1 design is that the cells are usually less than fully charged when the unit finishes charging. The reason for this is that the cells heat up quite dramatically at near full charge, so it sacrifices fullness of charge for cell longevity by not charging the cells to fullness in order to keep them cool.
Note that the 1-hr. charging time is based on 2000 mAH batteries. If you put in batteries with less or more capacity, the charge times will proportionally change.
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