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Old 23-08-2015, 18:42   #1
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Lithium/LifePo4 for starter/windlass/thruster systems

I know there is an excellent thread on Lithium as a house bank but started this thread to focus on high current applications (ie starter, thruster and windlass).

I don't seem to be able to find much information on people using lithium batteries as a starter battery.

I've seen plenty of videos with people starting cars with them and see they are prevalent as a motorcycle battery so why not use them as a starter/thruster/windlass system on boats?

Also, it seemed to make sense to have separate lead acid banks for starter and house batteries as the chemical makeup was different for deep cycle, but I don't think this is the case with lithium. So wouldn't it make sense to have one big lithium system?

The only negatives I can see at the moment are:

1. There might be some ignition protection required for other sensitive electronics on the same circuit.

2. It would require a BMS capable of delivery high current (I do see inexpensive 200amp systems available).

3. It probably requires a small lithium "jumpstart" pack for emergencies or a reserve capacity switch.

Wouldn't the advantages of lithium and a single bank outweigh this?

I'm very interested to hear peoples thoughts on this Thanks in advance.
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Old 23-08-2015, 18:51   #2
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Re: Lithium/LifePo4 for starter/windlass/thruster systems

There is also an excellent thread on this topic.
http://www.cruisersforum.com/forums/...ss-149000.html
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Old 23-08-2015, 19:41   #3
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Re: Lithium/LifePo4 for starter/windlass/thruster systems

Thank you. I tried to delete this thread so there is no duplication but don't have privileges...
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