DIY Electric Car Forums banner

1 - 2 of 2 Posts

·
Registered
Joined
·
91 Posts
Discussion Starter · #1 ·
I have a 120 volt pack made up of 6volt T-145 s. Trojan says the 20 hr rate for these batteries is 260.

A long time ago someone said i would need a 220 volt input charger to produce the necessary power to chrage these batteries to full capacity.

So what do i actually need to get the most from these batteries?

a charger that runs on 220v input? a 110v charger with some kind of modification?

if i could build one thats fine oz i already built my controller from the Open Revolt designs.

But what are some options...

Anyone?
 

·
Registered
Joined
·
1,773 Posts
I have a 120 volt pack made up of 6volt T-145 s. Trojan says the 20 hr rate for these batteries is 260.
I think you have misinterpreted Trojan's recommended charge rate. Look closely at diagram 4 in Trojan's User Guide.

The recommended charging rate is 10 to 13% of the 20 hour amp hour rating, not C/20. It is pretty much the standard charge rate of all FLA batteries or C/10. So the minimum charge current you are looking for is 26 amps up to 34 amps. With FLA you want a high enough charge rate to make the batteries bubble and boil a bit to keep the electrolyte moving to prevent stratification. So yeah being your pack is 120 volts you will likely need a 240 volt charger, and that charger will use a a dryer type plug.
 
1 - 2 of 2 Posts
Top