Schumacher SE-1052 50/10/2 Amp Manual Starter/Charger

Best Quilaty and value stupid simple, and will out last most chargers. My last one just like this one lasted 20 years, I guess I left it in the rain one to many times. Oh yes they still work after u shake the water out. Just don't forget to unplug after u think battery is charged, about a 8 to 10 hours at 10 amp, . From a total dead. This one ain't automatic. If you see any vapor's comming off your battery, it is very explosive material; do not do anythine that create's a spark or you might have a battery expolsiveing in you face. Look for vapors after a long charge. Use caution or wait for vapoer's to leave, about 15 minute's. Have question's go to http://www.batterychargers.comWhen a manual charge is performed, the charger will continue to charge and will not cycle or shut down by itself, even after the battery is fully charged. It will continue to put current at the selected setting to the battery until the charger is disconnected. You must keep a visual check on the ammeter to determine when the battery is fully charged. The use of a hydrometer or voltmeter to monitor the battery state of charge is recommended for use with all manual battery chargers. Be sure to monitor the charging process and stop it when the battery is charged. Not doing so may cause damage to the battery or result in other property damage or personal injury.FAQs About Battery SettingsWhen should I use a 2-amp, 10-amp, 12-amp, or 15-amp charge rate?This depends on how fast you want to charge your battery and the size of the actual battery you are charging. The higher the amp setting, the faster your battery will charge. For smaller batteries like lawn/tractors and motorcycles, we suggest a 2-amp charge rate, as higher charge rates may create a dangerous condition. Check your battery specifications for the charge rate.Why doesn't my battery charger shut off in the 2-amp position when charging my vehicle or deep-cycle battery?The 2-amp charge rate is intended for small batteries such as motorcycles, snowmobiles and lawn garden tractors. Consequently, when trying to charge a larger battery at that rate, it will take a very long time and the battery may discharge at a greater rate than the 2-amp charge can provide. It is better to charge a deep cycle battery at a higher charge rate like 6-amps, 10-amps or higher. However, check you battery specifications for the proper charge rate.Have question's go to http://www.batterychargers.com

This is one of the last "dumb" chargers remaining on the market. Inside the steel enclosure is a large transformer, a few odds and ends... and that's about it.I got this charger primarily for rust removal via electrolysis with some occasional battery charging. My previous crappy (Harbor Freight) charger was very finicky when it came to electrolysis and eventually bit the dust. It *seemed* like a dumb charger, but it still had some battery detection circuitry in it (which is why it wouldn't charge dead batteries). As soon as I got this Schumacher charger I hooked it up to my electrolysis tank and it fired right up.It can run continuously at 2A/10A but only for ~10 seconds at 50A, so don't expect it to compete with the large rolling chargers for sustained current output.Other reviewers stated that this is one of the few chargers that will revive car batteries that other chargers consider to be fully dead, which is another bonus.The only downside is that the front panel is a piece of plastic riveted to the steel. The plastic is not structural, it is just used as a label. It doesn't look like it'll break any time soon and it is not a critical component, so I won't deduct a star for it.All in all, this is a simple rugged 12v linear power supply just like they had in the olden days. What more could you want?

Just got this and tried it out. At first I plugged it in (after connecting it to a battery) and nothing happened, not even the hum of there being power. I thought of the hassle of returns and decided to open the case (after unplugging everything) to see if there was anything obvious. I quickly found a connector had come off the switch on the front (which was from the AC cable coming into it). So spent a few minutes to verify where it had come off of with the continuity tester, slid it back on and closed it up. That took care of the problem (but shouldn't have been needed on a new unit, so that why I dropped 1 star on rating).Otherwise I think this will work out well. When I was looking at chargers, I wanted one with at least some "boost" function, yet minimal switches & such for some who aren't very mechanically inclined. This has only the 1 switch for selecting 2-10-50 amp modes (and I hope if my sister or kids need it, they can figure out which of those modes to use). It also has the amp numbers on the meter (which I like better than the "Battery % charge" line alone on many other chargers). Not planning on using it much, but should be nice to have if/when needed.Also note, this is not an "automatic" charger that stops charging once the battery is full. On my quick test where I hooked it up to a full battery, it had the voltage at 15V+ in just a minute on 10 amps (where over 15V is "overcharging" almost any battery). So you do need to watch it and pull the plug yourself when full, otherwise if you want to leave it for long get a model with "automatic" features.