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N8GS's avatar
N8GS
Explorer
Apr 02, 2017

li fe po4 battery upgrade?

I am considering upgrading to lithium batteries has anyone here don that. I am looking at installing 3 100Ah batteries in parallel and using a PD 9160 converter to recharge them when my Outback solar charger can't be used.
Has anyone here converted to lithium batteries?

79 Replies

  • grizzzman wrote:
    the fact that you want to use 3 100 AH batteries shows that you have not done your homework.
    Please explain.
  • Going on two years now added four 200amp/hr LiFeMnPO4 Prismatic cells
    They have been wonderful to say the very least
    Contrary to popular belief they are not difficult to charge properly
    Suggest you look at the Prismatic cells as compared to the "Drop In Replacements" which are made of dozens of smaller cells in a series / parallel configuration
    Check out the Boating forums lots of good hands on info available
  • westend wrote:
    I haven't any interest in doing so because of price. One thing I do know is that you will need a different charging system that conventional RV converter. In fact, PD makes one that is compatible with Li batteries. You'll also need to have the solar charging integrate somehow with the Li battery charging management system. This is not an "install new lithium batteries and charge" situation.


    Both Battle Born (100Ah) and StarkPower (125Ah) Li-Ion claim they are drop in replacements for standard flooded batteries, although they do say if you can change the charge profile in your setup you should. Yes they are pricey, especially the StarkPower ones, but when you look at the amount of additional available power, faster recharge time, lower weight and longer lifespan it can all balance out in the end. Just depends on your camping style and your own life cycle cost analysis. Seems to me if your camping style leans towards dry camping then a Li-Ion upgrade is something to seriously consider.
  • N8GS wrote:
    I am considering upgrading to lithium batteries has anyone here don that. I am looking at installing 3 100Ah batteries in parallel and using a PD 9160 converter to recharge them when my Outback solar charger can't be used.
    Has anyone here converted to lithium batteries?


    Please don't take this wrong but the fact that you want to use 3 100 AH batteries shows that you have not done your homework. There is a lot of misinformation out there on this subject. I suggest you be careful of your choices. Do these batteries have some type of BMS?
    Good luck!
  • There only a couple of members who have done this
    And the whole thing/process was a top to bottom redesign and replace
  • I haven't any interest in doing so because of price. One thing I do know is that you will need a different charging system that conventional RV converter. In fact, PD makes one that is compatible with Li batteries. You'll also need to have the solar charging integrate somehow with the Li battery charging management system. This is not an "install new lithium batteries and charge" situation.

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