Battery charger ?

David H

Member

Equipment
L185
Oct 31, 2016
73
1
8
Auburn Hills, MI
Hi all
Accidently charged my conventional battery with the charger set for AGM battery.
Did I damage battery too much or at all.
I googled the heck out of it and could not find an answer.
Thanks David
 

DustyRusty

Well-known member

Equipment
2020 BX23S, BX2822 Snowblower, Curtis Deluxe Cab,
Nov 8, 2015
6,237
4,816
113
North East CT
You took a couple of years off of its life, but you won't know how many until it dies. I wouldn't worry about it. Better to charge a conventional battery in AGM mode, then charge a AGM battery in conventional mode.
 

eserv

Well-known member

Equipment
BX24, A1000 Kubota Generator
May 27, 2009
2,140
139
63
Hardisty, Alberta
Just a question what does the AGM mode do/?
More current or voltage?
Thanks David
AGM batteries shouldn't be charged as quickly as conventional LA batteries so the AGM charges the battery more slowly. so usually less amps
 

GreensvilleJay

Well-known member

Equipment
BX23-S,57 A-C D-14,58 A-C D-14, 57 A-C D-14,tiller,cults,Millcreek 25G spreader,
Apr 2, 2019
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Greensville,Ontario,Canada
I seriously doubt you did any harm....
according to a Google search conv. bat is 12.70 v, agm is 12.80 v
that .1 v 'over charge' might not even have occoured.

first what 'charger' did you use ? 'smart','trickle','SCR', 'stupid' ? There's at least 11 types of 'chargers' I've designed/built/repaired over 45 years.

2nd, what DVM do you test voltage with ? EVERY DVM/DMM is +-1 digit. So if it reads '12.7' it could be 12.6 to 12.8. Nature of the beast, NO exceptions.

3rd, what battery ? capacity and age are important factors, as it room temperature where charging was done. Depending on mfr/mdl/cap/age of battery it will require different charging methods to properly recharge the battery.

Jay
 

North Idaho Wolfman

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L3450DT-GST, Woods FEL, B7100 HSD, FEL, 60" SB, 743 Bobcat with V2203, and more
Jun 9, 2013
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Yep, no harm done at all, if anything it's a better way to charge a regular lead acid battery. ;)
 

David H

Member

Equipment
L185
Oct 31, 2016
73
1
8
Auburn Hills, MI
It was a harbor freight batt charger that has 2 amp 10 amp and 50 amp jump starter.
was very inexpensive but needed jump starter and old scumacher did not have that.
I do not know a great deal about the different voltages it produces.
It was about 40 deg for car and tractor batteries.
age of batt is about 3 to 4 years
 

propuckstopper

Member

Equipment
GR2010, BX2380
Jan 10, 2018
37
0
6
Canada
Hi all
Accidently charged my conventional battery with the charger set for AGM battery.
Did I damage battery too much or at all.
I googled the heck out of it and could not find an answer.
Thanks David
Your battery will be perfectly fine. No harm done using the slower charge rate of the AGM setting. Breathe easy.