I do not think there is a diode inside charge master to keep from damaging if you apply battery backwards. I would install one so if you hook up battery backwards no damage.
Here it is, Jerry.
I use a Rockford pocket power plus. It comes with the adapters to plug right into the chargemaster. Runs it for several days with great results. It will also start a 7.3 mechanical desiel. The unit is small and you can charge it with ac or with a cigarette lighter.
Is this it? Fancier than mine....ahhh!!
Mine is 500 amps and this one looks to be 450 amps. Not that 50 amps ie gonna make a difference.
http://www.cabelas.com/catalog/prod...91&gclid=COC4waSF5sICFUNM7Aod03IAlA&gclsrc=ds
Yep that is it but with a Rockford label on it. It comes with all kinds of adapters to connect it to all kinds of devices laptops, cell phones, and lots of other devices.
Comes with several cords, thats handy!
Comes with several cords, thats handy!
It is very handy! Bought one for the wife's car as well. Now she can charge her phones and iPad anytime and she is know to carry it in her purse.
Handy. I pulled in behind a lady and her small daughter who had just hit a deer and it broke her windshield. She was in a panic, her phone was dead!
If her hubby shot benchrest, had a Chargemaster and would have had a couple of these, who knows. Maybe the deer would have already crossed the road?
More coffee...I'll be OK then.