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Old 10-28-2015, 08:56 AM   #11
Phat Phrog Stunt Team
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Join Date: Aug 2011
Location: Iowa
Posts: 34,423
Originally Posted by thebrakeman View Post
Randy called back yesterday, and confirmed that he has it designed to hit 14.7V for 15 minutes or so, then drop down. So, I guess the "4 stage" means:
1. Short duration 14.7V to break up any sulfides (is that the right term?)
2. Bulk Charge - Constant max current (increasing voltage to a target)
3. Absorption Charge - Constant voltage (decreasing current to some target)
4. Maintenance Mode

I forgot to ask him about the effects of that 14.7V on appliances for those 15-20 minutes. But it sounds like this is not uncommon with automatic chargers.
Progressive dynamics has done it for years with the bulk mode @ 14 v.

You should be fine.

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