A123 vs Stock Battery ZX-6r

A comparison start A123 vs the stock battery. This is on a 07 ZX-6r in about 40 degree weather. Both batteries and the bike have been sitting for about 1.5 weeks.

Category:

Autos & Vehicles

Tags:

• a123
• motorcycle
• battery
• lithium

[pinoyfourlyf]

Battery seems to put a higher load on the alternator. Voltage recovers slower on A123. Can you confirm?

[routybouty]

@pinoyfourlyf I'm not 100% sure what you mean by higher load, so I'm gonna guess. The slower voltage recovery is because the A123 was not as charged as the lead acid. This causes the alternator to actually have to charge the battery. It results in it ramping up rather than just shooting up to the charged voltage, i.e. a higher load on the alternator.

[RIPPERTON]

Is this a 4 or 8 cell A123 ?

[routybouty]

8, I'm making a 4 for it soon.

[HELISTEVE35]

I believe the slower voltage recovery with the A123 cells is because the internal resistance is lower than the PB battery that is was compared to. Also you will notice the cranking voltage was higher due to the lower internal resistance of the A123 cells. The lower internal resistance results in less voltage drop under load and more charge current required to bring the battery up to the regulated voltage of the alternator but in a shorter time to replace the energy used to start the engine.

[xamboozi]

I have a 4s1p that works PERFECT in a 400cc twin Honda CM400T. I've been tuning the carbs a lot because I had an airleak that I didn't know about so i was doing a lot of cranking but the pack has yet to let me down. It will crank stronger than the 7ah lead acid EVERYTIME. Worth every penny!

[elephantcup]

Killer!

I'm making a 4 cell (a123 2300aH) pack for my little Ninja zx6R (2006) race bike. No lights on it of course, should work well and drop a lot of weight.

I'll try to find a spot low on the chassis (belly pan?) to mount it to get it's weight down low.

Don't waste your money buying a SpeedCell, etc for $250. Mine will cost about $70, with top quality components. That's half what an OEM Yuasa AGM lead battery for that bike costs, and the LiFe battery will last (much) longer.