Trickle Charging Won't Stop - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**Zonaman** · 07-26-2022, 11:15 AM

I've got an Optima red top in my truck that's getting close to 3 years old. Since I have some electronics that constantly draw a small current (clock, stereo) and since I may go for weeks at a time not driving it, I have it on a charger that maintains the battery and has an automatic shut off. The battery seems to hold a charge OK- a little over 12 volts (motor off) and the alternator seems to be doing it's job- about 14.3 running- everything seems fine. However, I noticed last night by charger seems to build up to read about 14.2 volts and never stops charging. I know the charger is good. What's going on here?

Thanks.

memo43 · 07-26-2022, 01:58 PM

Does the charger have a setting for different style batteries ie
AGM type, conventional batteries
6v or 12 volts.
The voltage reading sure is high

**Zonaman** · 07-27-2022, 07:05 PM

Charger does have settings for various battery type . Mine is set to 12v AGM. I finally disconnected the charger and let it set overnight. Reconnected and it to the charger and went to into float mode quickly. I'm guessing I connected it to a hot battery. Never underestimate Arizona in July.

memo43 · 07-27-2022, 09:40 PM

Glad you were able to get it sorted out.
Never would have thought that battery temp would affect a battery charger

07-26-2022, 11:15 AM	#1
Zonaman Senior Member Join Date: May 2004 Location: Chandler, AZ Posts: 508	Trickle Charging Won't Stop I've got an Optima red top in my truck that's getting close to 3 years old. Since I have some electronics that constantly draw a small current (clock, stereo) and since I may go for weeks at a time not driving it, I have it on a charger that maintains the battery and has an automatic shut off. The battery seems to hold a charge OK- a little over 12 volts (motor off) and the alternator seems to be doing it's job- about 14.3 running- everything seems fine. However, I noticed last night by charger seems to build up to read about 14.2 volts and never stops charging. I know the charger is good. What's going on here? Thanks. __________________ 69 C-10 LWB, 350, 700r4, 3.73 posi-traction, front disc brakes. Built for the desert- She can take the heat! Vivat Rex Chevus!

07-26-2022, 01:58 PM	#2
memo43 Registered User Join Date: Nov 2007 Location: Gardnerville NV Posts: 220	Re: Trickle Charging Won't Stop Does the charger have a setting for different style batteries ie AGM type, conventional batteries 6v or 12 volts. The voltage reading sure is high __________________ Memo S. Retired US Marine Family Man

07-27-2022, 07:05 PM	#3
Zonaman Senior Member Join Date: May 2004 Location: Chandler, AZ Posts: 508	Re: Trickle Charging Won't Stop Charger does have settings for various battery type . Mine is set to 12v AGM. I finally disconnected the charger and let it set overnight. Reconnected and it to the charger and went to into float mode quickly. I'm guessing I connected it to a hot battery. Never underestimate Arizona in July. __________________ 69 C-10 LWB, 350, 700r4, 3.73 posi-traction, front disc brakes. Built for the desert- She can take the heat! Vivat Rex Chevus!

07-27-2022, 09:40 PM	#4
memo43 Registered User Join Date: Nov 2007 Location: Gardnerville NV Posts: 220	Re: Trickle Charging Won't Stop Glad you were able to get it sorted out. Never would have thought that battery temp would affect a battery charger __________________ Memo S. Retired US Marine Family Man



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