100 amp charging source vs 2 grp31 AGM
My friend plans on running an obscene stereo in his new box on wheels acquisition. He wanted a dedicated power source for it able to power it for a respectable amount of time from battery power alo...
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It'z za little 'un 105 amp hour "T" model.
I am a firm believer in top charging new flooded batteries before putting them in service. OEMs invest as little electricity as feasible into their non-premium models. Yotta see the distribution grade yard Trojan has at their plant near the intersection junction of the 5 and 605 in Santa Fe Springs, CA.
All absorbed glass mat OEMs insist on recharging at high rates, voltage limited.
Everyone seems to love the charge receptivity of AGM. But they hem and haw about the size of a generator and miltiple chargers needed to establish such a high charge rate. The insistance on 100% recharges gives pause as well.
Such is the philosophy behind my BORG charger. It lays out a 95-amp potential until I say "Down Boy". Then my 3-dollar float charger takes over. Actually with the PC board 7-amp regulator chip and rheostat- it's more like ten dollars. This floater has cajones. 4-amps worth. When the relays take the Megas out of circuit the DT contacts enables the float charger. When I get lazy I connect the Whiff Co 55.
AGM batteries must NOT be overdischarged their first dozen cycles. I picked up on this quirk troubleshooting some cruising sailboats whose owners did just that and the batteries became cantankerous. Some of the batteries acquired a "memory" like a Ni-Cad. I had one large cat running both engines overnight to drive out the devils in (8) 8-D Odyssey batteries. Some of those Perkins and Yanmars have such tiny driver crank pulleys when the owner fits a 160-amp small frame alternator he"s lucky to get 55-amps out of it, even with the engine spinning at 2,500 RPM. RVers don't have all the problems...
I am a firm believer in top charging new flooded batteries before putting them in service. OEMs invest as little electricity as feasible into their non-premium models. Yotta see the distribution grade yard Trojan has at their plant near the intersection junction of the 5 and 605 in Santa Fe Springs, CA.
All absorbed glass mat OEMs insist on recharging at high rates, voltage limited.
Everyone seems to love the charge receptivity of AGM. But they hem and haw about the size of a generator and miltiple chargers needed to establish such a high charge rate. The insistance on 100% recharges gives pause as well.
Such is the philosophy behind my BORG charger. It lays out a 95-amp potential until I say "Down Boy". Then my 3-dollar float charger takes over. Actually with the PC board 7-amp regulator chip and rheostat- it's more like ten dollars. This floater has cajones. 4-amps worth. When the relays take the Megas out of circuit the DT contacts enables the float charger. When I get lazy I connect the Whiff Co 55.
AGM batteries must NOT be overdischarged their first dozen cycles. I picked up on this quirk troubleshooting some cruising sailboats whose owners did just that and the batteries became cantankerous. Some of the batteries acquired a "memory" like a Ni-Cad. I had one large cat running both engines overnight to drive out the devils in (8) 8-D Odyssey batteries. Some of those Perkins and Yanmars have such tiny driver crank pulleys when the owner fits a 160-amp small frame alternator he"s lucky to get 55-amps out of it, even with the engine spinning at 2,500 RPM. RVers don't have all the problems...
