Forum Discussion
landyacht318
Jul 17, 2015Explorer
Many reports online of Schumachers going to way too high a voltage.
Mine will goto 16.4v, sometimes, even when the battery is in no need of an Equalization charge. It will pump 14 or 26 amps into a battery, blast it right past the mid to high 14's into the mid 15's as the battery gurgles burps and generally spews diarrhea at this ridiculous and abusive charge rate.
I know it is not just My Schumacher Sc2500a which does this. I simply could/can never trust my Schumacher not to go bat******crazy and try and literally boil the electrolyte.
I've gone the adjustable voltage power supply route, and expel flatulence in the direction of automatic plug and play chargers.
I do like the PD9245 or pd9260 as one can at least override the 'stages' and hold 14.4v for as long as desired by pressing a button.
Cut a pair of jumper cables in half and it is a stand alone battery charger which will put many wheeled chargers to shame for a fraction of the size.
One pays a lot more for that well marketed Push button exterior and cheesy alligator clamps of stand alone 'one size fits none' chargers, which are less capable.
Mine will goto 16.4v, sometimes, even when the battery is in no need of an Equalization charge. It will pump 14 or 26 amps into a battery, blast it right past the mid to high 14's into the mid 15's as the battery gurgles burps and generally spews diarrhea at this ridiculous and abusive charge rate.
I know it is not just My Schumacher Sc2500a which does this. I simply could/can never trust my Schumacher not to go bat******crazy and try and literally boil the electrolyte.
I've gone the adjustable voltage power supply route, and expel flatulence in the direction of automatic plug and play chargers.
I do like the PD9245 or pd9260 as one can at least override the 'stages' and hold 14.4v for as long as desired by pressing a button.
Cut a pair of jumper cables in half and it is a stand alone battery charger which will put many wheeled chargers to shame for a fraction of the size.
One pays a lot more for that well marketed Push button exterior and cheesy alligator clamps of stand alone 'one size fits none' chargers, which are less capable.
About Technical Issues
Having RV issues? Connect with others who have been in your shoes.24,283 PostsLatest Activity: Jul 17, 2025