bigbang

I have a factory installed Guest 2540A charger on a 1990 Formula 292 SR1. The charger is operational but I have no documentation in the original factory paperwork. I've searched pretty deep in the archives of the interweb and came up with little info. Guest is now manufactured by Marinco, but my inquiry to them was not responded to. It's a low hour boat in excellent condition, so I'm not too concerned of performance or malfunction of the charger, but would like to figure out how the charger cycles, as there is only one lonely led that only indicates power. It is a "fully automatic" charger, but again, that's the only info I have on it.

Thanks for any leads.