I was recently given two 36 volt lithium ion batteries that were previously powering electric bicycles, and I'm wondering if there's some clever way to use them to boost the batteries in my RV? My RV has 4 Trojan T-105 6 volt batteries wired for 12 volts.
Currently I'm stepping the 36 volts down to 12 volts with a golf cart power adaptor that I'm clipping onto my batteries with allegator clips:
That works, but I don't think it's very efficient. I haven't connected an amp meter yet to see how much power is going into the battery, but I ordered one of these to monitor it:
The lithium batteries are rated 850 watt hours, but probably have much less capacity than that now. But still, very nice batteries.
My RV has a Morningstar MPPT-60 charge controller connected to three 300-watt solar panels. don't imagine it's possible to connect the battery directly to the charge controller (after disconnecting the panels)? My panels are the same voltage as the battery.
Or any other clever ideas?
Currently I'm stepping the 36 volts down to 12 volts with a golf cart power adaptor that I'm clipping onto my batteries with allegator clips:
That works, but I don't think it's very efficient. I haven't connected an amp meter yet to see how much power is going into the battery, but I ordered one of these to monitor it:
150A Watt Meter Power Analyzer High Precision RC with Digital LCD Screen for voltage (V) current (A) Power (W) Charge(Ah) and Energy (Wh) Measurement - - Amazon.com
150A Watt Meter Power Analyzer High Precision RC with Digital LCD Screen for voltage (V) current (A) Power (W) Charge(Ah) and Energy (Wh) Measurement - - Amazon.com
www.amazon.com
The lithium batteries are rated 850 watt hours, but probably have much less capacity than that now. But still, very nice batteries.
My RV has a Morningstar MPPT-60 charge controller connected to three 300-watt solar panels. don't imagine it's possible to connect the battery directly to the charge controller (after disconnecting the panels)? My panels are the same voltage as the battery.
Or any other clever ideas?