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horton333's avatar
horton333
Explorer
Sep 09, 2013

Battery Charger Recomendations

Hi:

Just back from 2+ weeks of 'dry' camping, a lot easier with a generator but still hardly optimal 12 volt living. I could charge my batteries significantly faster with my 25 AMP intelligent car battery charger than with the 55 AMP dumb one built into the trailer (55 AMPs but strictly 13.6 volts)! Especially as the generator (2kw) is on the noisy side clearly I need a better built in charger.

I see several people recommending the PD9100 Series and that would be a decent improvement but I am wondering if there is something better out there. These units are a long way behind the portable battery chargers which provide fully adjustable voltages to 14.8 as well as current forcing.

Any recommends for a built in unit with more intelligent charging - or should I just buy one of say the Black and Decker or Schumacher ones aimed at the car market and play with cables more than I want to.

As a minor note I figure there must be a typo on the PD webpage, surely storage temperature is wrong (even if there is only a "-" missing in-front it still seems pretty restricted for built in use in a trailer) PD9100 Specs

14 Replies

  • Horton,

    A lot depends on how much battery you are carrying. There is a limit to how fast Lead/Acid (any LA) can be charged. Any of the new 3/4 stage converter/charges will do better than the old 55 does. Being smart makes a big difference. Look for it and read the manufacturer's specifications. I know PD, Iota and (CRS strikes) are good. As I am no longer in the business, I don't watch so much anymore.

    The Progressive Dynamics line is real good, but get a PD9200 with the pendant. If you are running a pair of golfcart batteries in series, then 55 amps is all you can actually use. The Peukert exponent works both ways. PD has a nice write up on charging on their website.

    Matt
  • You didn't mention what you have for batteries but if you are running with 2 6's I would suggest the The Iota 55ampDLS with IQ4. if you are running 4 batts then get the
    75amp DLS with IQ4.It will charge your batts fast.
  • Hi,

    I'd go solar myself. One time cost for almost permanent peace and quiet.
  • There are better units than converters but they cost a LOT more. Magnum, Victron, Mastervolt to name a few. I would get a Black and Decker VEC1093DBD 40A portable charger unless you're willing to spend $1000+ to get into the other units I mentioned.

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