how does a charger know if a charge is complete?

eseyoung · 10-11-2015, 08:00 AM

Like the title says...how does it know?

I charged my batteries for a few hours yesterday. It got the 80% light but not the full charge light. Each battery shows 8.5 to 8.6 and a bank voltage of 51.3. Those are readings after letting the charger off for about 5 hours.

Thoughts?

10-11-2015, 08:12 AM

first off you let the charger go til it turns off .. it has a finishing cycle at the end
as for how it knows when to turn off ... its made to do it , don't ask ...lol

http://www.cartsunlimited.net/Batter..._Tutorial.html

Volt_Ampere · 10-11-2015, 08:37 AM

Chargers for FLA batteries all work on the pack voltage. They charge until the pack is at the full charge voltage - and then they over charge a bit to balance the pack.

eseyoung · 10-11-2015, 08:44 AM

I kinda thought it did something special at the end...i unplugged it because I was going to bed. Just didn't trust it completely.

I put it back on charge this morning and, probably while I was asking my question, it finished.

Thanks for the info guys.

cgtech · 10-11-2015, 01:08 PM

Sounds like you have the MAC "SCR481717" 48v charger. On page 6/7 of SCR.PDF, the theory of operation is explained. Yamaha has used 4 different chargers for 48v applications, they all determine when the batteries are done in the same fashion.

eseyoung · 10-11-2015, 06:08 PM

Thats the beast. Thanks for the info.

10-11-2015, 08:00 AM	#1
eseyoung Not Yet Wild Join Date: Oct 2015 Posts: 19	how does a charger know if a charge is complete? Like the title says...how does it know? I charged my batteries for a few hours yesterday. It got the 80% light but not the full charge light. Each battery shows 8.5 to 8.6 and a bank voltage of 51.3. Those are readings after letting the charger off for about 5 hours. Thoughts?
eseyoung Not Yet Wild Join Date: Oct 2015 Posts: 19

10-11-2015, 08:12 AM	#2
crash test dummy Guest Posts: n/a	Re: how does a charger know if a charge is complete? first off you let the charger go til it turns off .. it has a finishing cycle at the end as for how it knows when to turn off ... its made to do it , don't ask ...lol http://www.cartsunlimited.net/Batter..._Tutorial.html
crash test dummy Guest Posts: n/a

10-11-2015, 08:37 AM	#3
Volt_Ampere Gone Wild Join Date: May 2012 Location: Rio Verde, Az Posts: 7,183	Re: how does a charger know if a charge is complete? Chargers for FLA batteries all work on the pack voltage. They charge until the pack is at the full charge voltage - and then they over charge a bit to balance the pack.

10-11-2015, 08:44 AM	#4
eseyoung Not Yet Wild Join Date: Oct 2015 Posts: 19	Re: how does a charger know if a charge is complete? I kinda thought it did something special at the end...i unplugged it because I was going to bed. Just didn't trust it completely. I put it back on charge this morning and, probably while I was asking my question, it finished. Thanks for the info guys.
eseyoung Not Yet Wild Join Date: Oct 2015 Posts: 19

10-11-2015, 06:08 PM	#6
eseyoung Not Yet Wild Join Date: Oct 2015 Posts: 19	Re: how does a charger know if a charge is complete? Thats the beast. Thanks for the info.
eseyoung Not Yet Wild Join Date: Oct 2015 Posts: 19

Today
BGW	Sponsored Links __________________ This advertising will not be shown in this way to registered members. Register your free account today and become a member on Buggies Gone Wild Golf Cart Forum

Similar Threads
Thread	Forum
Complete manual for Powerdrive Charger	Electric Club Car
Charger won't charge...	Electric Club Car
Charger won't charge	Electric Club Car
new batts and charger wont charge, charger works on other carts	Electric Club Car
How to hook up 12volt charger with 36 volt charger to charge 48 volts	Electric EZGO