Deep Cycle Battery for ENGINE CRANKING? | Ask The Expert with NIGEL CALDER

[@tb-ws5es]

Finally the truth much appreciated Nigel and young if I was paying attention. Cuz I used to have a drag car I did change the alternator to a one wire I had custom built but is what it is

[@goodq]

Thank you Jan and Nigel for being awesome people. ♥️♥️

[@MADsailing560]

I did not want to mix LIFEPO4 with AGM so I went with Dakota Lithium "dual purpose" batteries (three 135AH batts; very expensive) for my 35' sailboat with 3YM30 Yanmar. It cranks it quickly and easily and I keep one side (2 of the 3 in parallel) for the house and one one for the start, and I switch them back and forth to work them somewhat equally. I have had them for a year now with ZERO problems. I do not even think about them anymore, really. They just deliver the power! I keep them topped off with 300 watts of solar on the deck. I can now run refrigeration full time. The BEST thing about LIFEPO4 batteries is I NEVER have to be concerned with topping them off to prevent premature murder! If I charge them to 40% or 80% or 100% --- it makes no difference!!! People talk about all of the other reasons for lithium but this is, hands down, the NUMBER ONE reason lithium is a game changer!! I was thinking that issue could be a good video for you guys to make in the future.

[@mikek5399]

I have a 22ft carbureted 1976 Chris Craft and don’t have any accessories to run. Should I use deep cycle or cranking?

[@jimh.5286]

For years I've been starting my 2006 90 hp Honda outboard with two Battle Born 100 AH lithium iron phosphate batteries in parallel. They also serve as the house batteries. The outboard cranks rapidly and always starts well, within about 5 seconds. A few times I've accidentally started the motor with only one of the batteries and I noticed no difference in cranking speed. (These batteries aren't designed for inductive loads. When I tried using them for my 3 hp electric kicker motor, they shut down after about 15 minutes).