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Everything in my camper is powered by a single 100 Ah battery. It’s great if I’m only out for a few days, and I have a 100W solar panel which can keep me going indefinitely when I’m just hanging out.
However, if I’m doing a lot of driving where I’ll neither have shore power nor be able to use solar for awhile, I could use another source of juice.
Can I simply connect my emergency start battery (specifically Noco GB40) in parallel to my regular batt? This thing looks like it charge enough while driving to meet 100% of my needs for at least a day so it would be nice to have another option for power.
This would be an interesting trial, but I must confess that I don’t have a firm answer to this…However when thinking about this, since the voltage should be roughly within the same parameters I can’t really think of a reason why this strategy shouldn’t work – at least as an emergency back-up, but recharging would likely be a entirely different matter…AFAIK, this type Lithium battery has a very high power density (e.g. power = watts) meaning it most likely is of a ‘hotter chemistry’ (possibly cobalt based) than the typical and far more forgiving LiFePo4 RV drop-in type battery…Because of this, special attention would have to be given during the re-charge stage due to the potential of a fire hazard…This issue should not be under estimated – were you to try out this as a supplemental battery strategy, you should then strictly use the dedicated charger that was provided with the aforementioned battery…JMHO
Please report back as to your findings!
Phil
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