View Single Post
Old 08-14-2013, 12:56 AM   #24 (permalink)
serialk11r
Master EcoModder
 
Join Date: Jan 2012
Location: United States
Posts: 1,605

spyder2 - '00 Toyota MR2 Spyder
Thanks: 95
Thanked 326 Times in 253 Posts
I think the point is that a typical battery has a good amount of Ah on tap for cranking purposes but needs to be big to deliver the necessary current, which is where the capacitors come in; When the power demand is higher than the battery can supply, the voltage in the battery drops faster due to internal resistance and the capacitor will then help provide more power for a short period of time.

When my battery needs replacing though, I will probably just grab an AGM battery with a healthy amount of CCA over what is required and forget about it. The capacitors may extend the life of the battery but I could just buy another battery with that money.
  Reply With Quote
The Following User Says Thank You to serialk11r For This Useful Post:
TexasCotton (11-02-2013)