C40 Adjustable Battery Charger 12V 24V 36V 48V 60V 72V, 16A Pulses of High-Voltage Battery Desulfator Maintainer with Smart Chip for Lead-Acid LiFePO4 Lithium Batteries BLB-C40

Todo bien

Woke up lithium golf cart batteries running this c40 continuous for 4 days. Also charged 72v golf carts for past year. Power cord is too thin and heats up so please replace it for high wattage charging. Fortunately it uses the same back end as a PC computer tower so you can find a thicker computer cord and plug it right in. It's Amazon Prime week so I just bought another of these C40 chargers as a backup.I've found that if a battery is severely discharged and has a low voltage this charger will detect the terminal voltage is too different from the dialed in selected voltage and turn off, displaying "off" on the LED segment panel. When this happens, I just select in a lower voltage for a short time, allow the voltage to rise, and then re-select the desired voltage and proceed. I regretted shorting and frying my 72v variable Schumacher charger which isn't made anymore but this charger is every bit as good and better with the LED display of V and A and the fully variable current knob. The unit has a fuse (breaker, actually) button and an overload button on the back and these have never "popped" meaning the unit seems smart enough not to need them or that I haven't connected 72v on a 12v setting like my other charger. As for fan noise, it is very acceptable- loud enough to know it's blowing nicely but not annoying at all to work close by. Between each 12v graduation is a H marking which appears to be a half step up in voltage. I'm not a writer (obviously) but as an engineer and interface designer who complains about everything, aside from the power cord, I find nothing to be improved about this workhorse. Well maybe an illuminated power switch instead of the small LED power lamp. :)

I bought this HD multi-voltage, multi-type battery charger to charge my 12V DC house backup batteries in both 12V DC parallel and 72V DC serial patterns as well as to charge my 72V DC NEV batteries. And, with the capability to charge Li-Ion batteries also, it is ready for future use. It's great to be able to vary the amperage up to 25 amps to facilitate fast charging and help with desulfating flooded cell PbSO4 batteries. It's prudent to remember that charging multiple flooded cell PbSO4 batteries, in series does not distribute an equal charge per battery. So from time to time, the batteries should each be charged separately at their rated voltage, as well as their series positions should be changed.I've been using this charger for a year now, sometimes daily for weeks at a time and it's still functioning nominally. I recommend this charger for those having multi-voltage, multi-amp, multi-battery type charging needs. It's been a real workhorse for me

Good

Charging 72V batteries, 1st time used and something popped inside and smoked. Outside 30 day return window, so what a waste of money. Cheap crap that was not worth the value. DO NOT BUY

The AC power cable will not fit tight, even a different cable does not help. It also displays double the amps it is actually charging at, so when it says it is charging at 30 amps it is really 15 (measured with a meter).

Exportamos baterías y ya e comprado cuatro cargadores sin problema máxima calidad y barato no entiendo como ay quejas buen producto lo recomiendo

I have a bus that uses batteries wired in series to create 24 volts. Smart chargers are stupid. If they don't see 24 volts, they flip to 12 volts. Not this bad boy! I set it to 24 volts and that's what she does. Love it. This charger is bigger than I imagined, in both size and weight, and I'm happy about that. It's beefy! I've purchased way to many "smart" chargers, and finally had enough and went with this, and I'm so thankful I did. This charger doesn't mess around, has plenty of "smart" features, and gets the job done. Completely recommend this if you need a batter charger that gets things done!