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Most automotive electronics work on a 12 Volt DC system. You must be using adapter capable of providing about 12 to 14 volts because car batteries provide 12 volts; but car alternators put out 13.8 volts. Do not attempt to connect to an adapter that put out AC voltage!
check it with a multimeter and see if its putting out any voltage, specifically 7.2 volts, it could be just that the led is bad on the charger but its still charging
Lithium Ion batteries don't charge the same way ni-cads or ni-mh do. You need a lithium ion specific charger to charge them. (Some chargers do multiple types.)
If the battery is completey drained or very low the charger will get hot to the touch, The charger put out 14.6 volts and then trickle down to 13.8 volts once charged, i would check the charger with a multimeter and check and see what kind of volts its putting out. if the battery is bad the charger wont think that it has completely charged it and will continue to push 14.6 volts into it
Actually, the charger for this 7.2 volt machine probably puts out nearly 9 volts to push the voltage into the battery. It shouldn't hurt the battery to use a 9 volt charger as long as the connectors match up. There are a lot of devices out there now that use 9 volts, so it shouldn't be too hard to find one that would match up with the connector on your sweeper. All the charger/transformers tell the input they use and the amount of voltage they put out.
Hi, you're Rectofier has failed if you have A/C voltage and no D/C voltage. This is what converts A/C volts to D/C volts. If you have a diagram or any parts manual, you can locate this part and replace it. You will need to go to a place that repairs these chargers, or where you bought it to order or but a new one. Sincerely, Shastalaker7
check output voltage on charger label most chargers are not regulated so if it says 18 volt output it may put out 24 volts but if its putting out 51 volts it may have a short batteries will get warm but not hot replace charger
I hooked a 12 volt car battery charger to the battery for about two min. Then I put it in it's own charger,the yellow & green lights came on for about 5 sec. then the red light came on . About 30 min. later the green light came on and the battery is fine.
Sounds like you have a bad charger. If you have access to a volt meter you can set it to volts DC put the meter to the batteries then plug in the charger. If the volts go up on the meter after you plug in the charger is working ok.
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