do lithium batteries kill starter motors? (& brushed motors)
do lithium batteries kill starter motors? (& brushed motors)
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Discussion

jimmyhackers

Original Poster:

16 posts

18 months

Yesterday (17:58)
quotequote all
306 gti6

i had to recently replace my starter motor....6 monthsish after fitting a new lightweight lithium car battery.

can a lithium battery shorten a starter motors lifespan?

anyone had experience with this?


My reasoning: my RC car upgrading from years ago.

it was a brushed motor with 8v nicad batt.....was fine
i went to a 2s lipo/lithium battery @ 8.4v....brushed motor died within 2 or three use sessions
every replacement brushed motor afterwards.....same story 2 or 3 uses. (some were from 12v drills etc)

went to brushless setup (still going strong)

i worry as there are plenty of other brushed motors in my car.... and would rather they didn't burn up

TIA

Jim

simon_harris

2,828 posts

60 months

not quite the same but airsoft motors are most often bushed and we use lipo's with them all the time without problems

LunarOne

7,158 posts

163 months

I can't see how the chemistry of the battery would make a difference. Externally the battery will cause a voltage that will drive a current. Perhaps the Lithium batteries can deliver much more current than was the case before?

davek_964

10,970 posts

201 months

Plenty of cars run with Lithium batteries from new - I own one. They don't cause starter motors to fail.