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53Murf

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  • Gender
    Male
  • My Project Cars
    1953 Dodge B4c

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  • Biography
    tinkerer
  • Occupation
    Building automation

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  • Location
    Chicago Il
  • Interests
    You name it.

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  1. Thanks for all your help gents. Looks as if I will be installing these Lithium Ion batteries in my electric lawn mower. ? I like the Optima since I don't care what it looks like under the floor board so that works for me. And 800 CCA!! I believe the interstate Battery I used for years is only 650 CCA and never had a problem starting the old Dog so I'm sure the 53 Murf B4C will love it.
  2. Hi Maok, I didn't even think of that at all. I always make assumptions and should have asked the question earlier. I really liked the idea of not needing to babysit the led acid battery and have the problem of the leaking acid in the box. But I'm stubborn and will give it a try even if I need to buy 2 more batteries if you think it would be enough AH. I just would like to share if we make this successful retrofit. It is so hard to find information about replacing lead acid batteries with Lithium since most cars now use an alternator. Thank you so much even though I didn't want to hear the bad news. Murf
  3. Thanks Maok! I was thinking about the BMS but I couldn't find one for 6V only 12 and 24v . I was hoping the original regulator could do the job if I balanced the voltage out before I installed them and just used a simple monitor to show if the voltage gets out of balance then retune them. I think you are correct I will need to try to find a BMS for the 6V layout. Since I bought the batteries already I hope its not total waste since I may be able to use them in my electric lawnmower maybe?. Thanks again Murf
  4. Has anyone attempted to replace their lead acid cell 6v battery with a lithium Ion? I have a 1953 Dodge B4C that I haven't driven in 8+ years and since I'm guessing the battery is trash I would try to use 4 lithium batteries as shown I'm sure i can adjust the regulator to 7.2 V DC output but I don't even think I need to deviate from the stock settings. Got these "Grade A 4PCS 3.2V 280AH Battery LiFePO4 Lithium iron phosphate Battery Packs" for 225.00 bucks And will let you all know how it works out. Please let me know if anyone thinks this is a bad idea or have any recommendations. Thanks Murf Battery specs Specifications product Name: Lithium iron phosphate cell. Shell Material:Aluminum. Rated capacity:280Ah. Minimum capacity:280Ah. Internal impedance:0.1~0.3mO. Nominal voltage:3.2V. Dimensions(L*W*H):174*72*205mm. Weight:5.22±0.2kg. Recommend Constant Current:280A(1C). End-of-Discharge Voltage:2.5V. Recommend Constant Current:140A(0.5C). Charge Voltage:3.65V. Max Continuous Discharge Current:280A(1C). Cycle life (80%DOD):4000 cycles.
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