Lenmar MSCAA MACH 1 Speedcharger for AA and AAA Nickel Metal-Hydride Batteries: Customer Reviews & Product Details

I bought this charger for a vacation in 2004. Along with the 4 AA cells included with it, I purchased an additional 4, also by Lenmar. All rated at 2000 mah.

Almost six years later, four of the original 8 cells are still working. Six year life for rechargeable batteries is a pretty good return on my investment!

My major complaint about the charger is that the charging light goes out when the fast charge mode comes to an end and the trickle mode begins. That means I never really know when the batteries are truly topped off. Hang around an hour to watch the charge light go off, and then wait 2 to 4 hours? Not convenient.

The internal fan is not safely fastened to the charger's body. It's (badly) glued. The fan of my charger was unglued -because of vibrations of transport?- and it's gotten stuck among electronic components, so the charger didn't work at all. I fixed it by myself, but I had to disassemble the charger and glue the fan again in it's original place.
Otherwise, the charger works fine: fast charge, low noise (which reveals that the fan is working OK).
But the quality control is not a minor issue. Please, Lenmar take note of this. I do NOT recommend this product.

The only thing this charger does as advertised is it keeps your batteries cool. It only charges the included 2500 mAH batteries to about 1800 mAH (verified on the Maha C-9000 charger/analyzer, which charges the included batteries to about 2350 mAH). No wonder the batteries stay cool -- it doesn't charge them all the way, not even close. The charger housing is cheap and came slightly scratched up. The bottom line is the charger stinks and the batteries it comes with stink. Save your money for a charger worth purchasing.

It charged my AA batteries in less than an hour. I have been using them in my digital camera for 2 or 3 weeks and they are still going strong. If the battery charger continues to work this well, I will be very pleased. In a year from now, if I find it isn't working as well, I will come back and edit my review.

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.