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smooth1's avatar
smooth1
Explorer
May 26, 2015

Matching AGM Batteries to PD9245

Hello. I have a new to me camper and get a clean start with solar and batteries. My previous camper had a PD9245 and (2)Sears Grp 31 PM1 AGM batteries. The float charge on the PD9245 is 13.1V and the batteries wanted a 13.6V float according to their specs. I didn't have any issues in my (2) years with this set-up and I leave it plugged in at home when not out camping.

My new to me camper had the same PD9245 charger, so I am curious if there is an AGM out there with a 13.1V float.

8 Replies

  • MEXICOWANDERER wrote:
    REQUEST FOR INFORMATION :)

    Which portable generator models are suitable for a 9280?

    By the way - unrelated - WOOT.com had a WESTINGHOUSE inverter generator 2,200 watts offered last night for four hundred dollars, and high change...


    The 9280 is not PF corrected, so it needs a 20a circuit to plug into. (see specs)

    It should not run on a Honda 2000w, but Fisherguy says his does. It would run on a Honda 3000 which has a 23.3a (AC) spec. There is a Yamaha 2400 that might just do it where a Honda 2000 should not, but I am not familiar with the Yamaha specs or performances.

    I use my PowerMax 100 amper, which is PF corrected, that I twiddled the voltage pot to be 14.8v, and it runs on a 15a circuit no sweat.

    I would not touch the PD 80 amper 14.4v job with a barge pole, when I can use my 100a PowerMax 14.8v (as set by me) charger instead with less draw on the generator.
  • Lifeline offers Two group31's, one has 105Ah and 600 CCA and the other 125AH and 650CCA and weighs 10 Lbs more.
  • Thanks --- Lifelines are nice --- may go that route.

    wa8yxm - do you have a name on the grp 31 at 130 amp hours. The ones I have seen are 100 amp hours.
  • REQUEST FOR INFORMATION :)

    Which portable generator models are suitable for a 9280?

    By the way - unrelated - WOOT.com had a WESTINGHOUSE inverter generator 2,200 watts offered last night for four hundred dollars, and high change...
  • wa8yxm's avatar
    wa8yxm
    Explorer III
    That explains somethign I wondered about.

    NO,there is not an AGM with a 13.1 float. But they still work well with the PDI Wizard jobs.. The reason has to do with another feature of the Wizard (Auto-equalization for a few minutes every day)

    Now..one other observation: The 9245 is limited to 45 amps out.. LIFELINE says the initial charge current should be AT LEAST 20% (They used to say 30) of the C/20 rating..Group 31s are 130 amp hours so that's 40 amps FOR ONE battry. You have two.. You need a 9280.

    OF course that is only LIFELINE.. most companies want 30% as the MAXIMUM recharge rate. So again a 9280.
  • My opinion is to cycle the charger occasionally. Draw down until it goes into boost. I would also recommend that you double check the accuracy of your measurement meter

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