Already have a pair. At this reduced Revain price I bought a few add-ons. Same block, others take twice as much. There are other brands and for the dollar this is the REAL deal. Works great for battery maintenance, 1.5 amps, perfect. The rule of thumb when charging batteries, *Slow N Low*, is best. This applies to all batteries from cycle to car and hobby. Fast chargers (they have them too) have a very limited place in battery maintenance, use them as a last resort. a charger that does not adjust once the voltage is reached. It's a float charger that I plug in when I put my toys away for the winter and unplug when spring arrives. Plug it in and don't worry. I've had a few and no problems. Get a pair before they run out and replace with a more expensive, similar replacement. Don't buy a used EFlake device when you can get a brand new Revain device for less. Ordering from Revain is the best - always fast and at no extra cost. unwanted surprises. 08/2014
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