Re: [Electric Boats] Re: Battery charger limits and the Honda 2000 generator

 

Hey Todd,

 

I never thought of that.  Longest I've run with the Delta-Q charger putting out 18 amps was about 3 hours - worked fine.  It's programmed for my 220 ah bank so it would expect to put out bulk charge for 12 ish hours to fully charge a dead bank.

 

Denny

 

 

This idea of a 'serial hybrid' (genny-2-charger-2-batts-2-motor) certainly works and has it's benefits. But realize that many of these high-tech smart chargers have sophisticated algorithms in their firmware that factor 'time of recovery' as part of their computations. So for instance even a deeply discharged bank should get up to optimum bulk charge voltage (let's use 14.7 volts/12 volt battery for example) in a certain period of time.

When you add the load of the motor into this equation the firmware is now wondering why it can't attain that pre-programed bulk charge voltage in a given period of time, and may shut down thinking that there is a problem with the battery bank itself.

I would guess that most chargers could handle short periods of use in this way, but extended runs might be a problem.
Capt. Todd
www.epowermarine.com

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