Buy Schumacher PS-1562A DSR ProSeries 1.5 Amp 6/12 Volt Automatic Battery Charger/Maintainer Now
I've had this charger for a little over 9 months and used it 3 or 4 times on our car. I like it's compact size and the 3 lights, power on (red), charging (yellow) and charged (green). I also bought the Schumacher EC-25 25' Cable Connector Extension Cord.I don't what the difference is between this model and the Schumacher SEM-1562A 1.5 Amp Speed Charge Maintainer (which costs less) but keep in mind before you buy that other model#, it notes the Proposition 65 warning (for California residents).I am using two of these charger/maintainers, as well as some other brands. This model claims to have temperature compensation, and although I have not used it yet in any temperature extremes, I have not seen any change in voltage in a small band of temperatures between 67 F and 78F. Let's assume it will compensate at temperatures out of that range, but even in that range, I've seen it raise voltage to 14.8, 14.9, even over 15V a few brief times. Fortuneately I've never seen it maintain over 14.8 for more than about 1.5 hours, so it probably has not done too much damage to my batteries, but I'd feel way safer it it stopped at around 14.4V, since it has no setting for battery type. Definitely not the one to use for GEL batteries. What's strange, but I find acceptable, is that in FLOAT mode, it's only about 13.25V, which is a bit less that would be expected when it charges at higher-than-normal voltages. Bottom line, is that since it doesn't normally stay at the excessive voltage levels for a very long time, and it stays then forever at a safe 13.25V (at around 70 F), it's probably a relatively safe charger/maintaner for such a cheap price, assuming it will voltage compensate at temperature extremes. If you are willing to pay a lot more for a far better charger/maintainer, look to BatteryMINDer 2012 or 12248 or Xantrex for the best, as far as I have ben able to determine, but for such a low price, I think this Schumacher ProSeries will most likely do more good than harm to most wet (non-GEL) lead-acid batteries.Very good for maintaining batteries, I have 8 of them now for my shop. This is one to buy for keeping your battery charge full.
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