Battery Desulfator，Battery Maintainer for Cars, Trucks, Motorcycles, ATV, Boats, Solar panel battery，Auto-Setting 12-48V 400AH

Works, use whilst trickle charging to stop it draining battery, I was too scared to use it whilst on car as the higher voltage it outputs could damage something.

It works as expected and has a reassuring flashing light

it also show's you what state your battery is in when you connect .

I was very surprised this little beauty actually worked, I had a very sick honda CRV 2.2 diesel car battery, wouldn't charge above 12.1v and dropped off below 12v on cold days. The battery Is definitely at least 5 years old as it came with the car, but could be potentially 10 years old.Through this thing on it for a few cycles (over 12 hours each time and charged in between) voltage now between 12.8 and 13v, car started every time all winter, which it would not do prior despite charging.I know Its not a miracle machine, I probably will need a new battery at some point but saved a £200+ battery purchase near Christmas. Well worth a try for the money.

Pulsing battery desulphators need to pulse higher than standard 14.4V charging voltage (for a 12V battery) to breakdown and dissolve sulphate deposits on lead plates. However this Clean Power desuplator, while advertising peaks of 40-100V, on an lab oscilloscope it shows peaks of 1V on a 12V battery - which is useless for desulphating.

To save your battery It shuts off when your battery goes under under 12.6 volts. My battery usually sits between 12.3 and 12.5. Therfore it only works on my car when the engine is running and the voltage goes up. It does not work 24/7 on my car.

Seems to solve charging problem

After seeing how my ring battery charger's 'recovery' mode worked I set about trying to find how... which brought me to desulphators. Having 9 motorcycles I was used to batteries that have been on charge all winter, appearing to be fully charged (12.7 volts) but would barely turn the motor over so went in the bin Running 3 cycles with this desulphator does the trick now, attach it for 6-7 hours (battery must be charged first) then recharge the battery, do this 3 times... As an aside, on modern battery chargers, if they see too low a voltage they will not apply a charging voltage so to get round this you connect a good battery in parallel which you can remove when the dud battery has got some charge in it.