Jumper for Batterys in Series
While helping a friend I noticed this,the jumper between the 2 batteries is much smaller than the ones for neg. and positive .Shouldn't they all be the same? Click For Full-Size Image.
Forum Discussion
Absurdity got carried to a superlative when I repaired major wiring screwups on a 55' Passport sloop. A revamped Delco 10DN alternator (Balmar 130-amp rating). Would you believe 2/0 marine cable crunched to a lug with a 5/16" hole?
While even 10 gauge AWG wire can easily support 80 amperes in a 16" run, the terminals present the biggest limitation. 6 AWG would pass 140 amperes at a voltage drop too insignificant to mention. I went through a runaround at an Auto Parts store last year in San Diego. Needed 6 gauge wire. Not AWG, SAE would have done fine. They produced straight strand cable with fat insulation with a conductor closer to 7 gauge than 6. Off shore supply? I do not know. Unless a 2000+ watt inverter is needed 6 AWG cable like what genuinedealz offers would be more than enough to series bridge.
My 2-volt cell bank is series connected with 1/0 AWG. The main cables are 350 MCM which id 40% larger than AWG 4/0 cable. The 350 MCM feeds a 500+ ampere battery charging potential.
Fighting a nest of ------off anacondas to access fill caps is not good planning. I have encountered too many snapped GC220 terminal posts to suit me. And a surprising number of folks dwell on series cable overkill and ignore the chassis to house interconnect.
The next time your motorhome house batteries get discharged check the voltage drop between the alternator's battery output stud and the house battery positive post. You will be dismayed.
While even 10 gauge AWG wire can easily support 80 amperes in a 16" run, the terminals present the biggest limitation. 6 AWG would pass 140 amperes at a voltage drop too insignificant to mention. I went through a runaround at an Auto Parts store last year in San Diego. Needed 6 gauge wire. Not AWG, SAE would have done fine. They produced straight strand cable with fat insulation with a conductor closer to 7 gauge than 6. Off shore supply? I do not know. Unless a 2000+ watt inverter is needed 6 AWG cable like what genuinedealz offers would be more than enough to series bridge.
My 2-volt cell bank is series connected with 1/0 AWG. The main cables are 350 MCM which id 40% larger than AWG 4/0 cable. The 350 MCM feeds a 500+ ampere battery charging potential.
Fighting a nest of ------off anacondas to access fill caps is not good planning. I have encountered too many snapped GC220 terminal posts to suit me. And a surprising number of folks dwell on series cable overkill and ignore the chassis to house interconnect.
The next time your motorhome house batteries get discharged check the voltage drop between the alternator's battery output stud and the house battery positive post. You will be dismayed.
