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azrving's avatar
azrving
Explorer
Jun 27, 2014

Love the stench

A week or 2 ago I posted about long charge times with my PD4655 converter. Since then I not only upgraded my 6 gauge lead to 4 gauge but also piggy backed it with another piece of 2 gauge. I ran the batteries (4 six volts)down to about 12.2 and started charging again and began documenting it. I gave up after a day or so and kept hitting the boost button. It reached 1.275 sg after 2 1/2 days and the converter finally hit 13.2 float after 4 days.
BUT.....the good news is that the brown suited santa left a real battery charger on my porch today. Its a Quick Charge. 12 volt 50 amp with adjustable parameters depending on how you want to charge. I turned everything on for about an hour or more and ran the voltage down to 12.5. I shut everything off and turned on the Quick Charge. It started out at 13.10 and started creeping up. When I went in to eat it had reached 14.30. I came out about half an hour later and it was at 15.46 and I could smell the wonderful stench of batteries charging. It held for about an hour and a half and dropped to 13.30. Specific gravity is over 1.275.
After spending 35 years repairing electric fork trucks, JLG, Cushman, Motrec and other industrial equipment I was dang glad to not be smelling the stench of batteries but I sort of like it now. I will be running the pack down to about 12.2 or so in a few days and I'll start charging again and document how long it takes.

http://www.quickcharge.com/on-board-chargers-standard.html



Heat sink can reach 160 to 180 degrees




It was only $400.00 and weighs 35 pounds.









  • A, B, or C, one is just right for the nail.

    When charging batteries begin to smell like Yellowstone National Park, maybe it's time to downsize. 15.6 volts is a bit ripe. Too rich for top charging and too feeble for equalization. Remember the current limiting rules for both protocols. Or your battery dealer is going to be one happy camper.
  • MEXICOWANDERER wrote:









    A, B, or C, one is just right for the nail.

    When charging batteries begin to smell like Yellowstone National Park, maybe it's time to downsize. 15.6 volts is a bit ripe. Too rich for top charging and too feeble for equalization. Remember the current limiting rules for both protocols. Or your battery dealer is going to be one happy camper.


    Thanks Mex
    The top voltage it hit was 15.53 and my sg is near 1.275. Its been in the 15's for about 2 hours total and its been tapering off. I didn't get enough data points to pin point how much time was spent at 15.53 but it wasn't real long.
    The charge seems to be much more like the style that my boat with the 4 12 volts from sams club deep/marine batteries. Those are 7 years old and use a Lester industrial charger. I posted about them before and they hit 62 volts. 48 volt system so 15.5 per. All the multi battery type equipment I have worked on would obviously gas as it should and get whiffs of that smell. They aren't hot. Cant find my temp gun right now.
  • It just dropped to 13.29. So.... from 12.25 to float and 1.275 sg in 6 1/2 hours. The batteries are not really even warm. Not bad. I cant do the winter boondock thing while looking at 2 1/2 day charge times. I hated being driven out of nice spots just to go plug in. Now its my black tank that may limit me. Oh wait, they have those blue totes for that.. I'M FREEEEEEEEEEEE

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