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#4606982 - 12/18/17 08:12 AM Battery charging question
SilverFusion2010 Offline


Registered: 06/29/11
Posts: 1669
Loc: Crawfordville FL
When you charge a car battery, can you charge it "on vehicle" or should the battery be disconnected from the vehicle to be charged?

I will be using a solar prologix 2320 to charge a tired Bosch 96R on the 10 amp setting
_________________________
2010 Ford Fusion SE 3.0L V6, 178k miles M1 HM 10w-30

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#4607000 - 12/18/17 08:37 AM Re: Battery charging question [Re: SilverFusion2010]
motor_oil_madman Offline


Registered: 11/29/09
Posts: 4893
Loc: Houston, Texas
If you can jump start a battery with it connected I think charging will be fine.
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2007.5 dodge cummins 6.7 liter. Chevron Delo400 15w40. 7000 mile or 250-300hr intervals.


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#4607007 - 12/18/17 08:49 AM Re: Battery charging question [Re: SilverFusion2010]
VeryNoisyPoet Offline


Registered: 12/16/17
Posts: 318
Loc: Massachusetts
The biggest concern for charging on vehicle with an external charger is accidentally exposing vehicle systems to too much voltage. The PL2320 appears to be a multi-phase electronic charger, so there shouldn't be any issues as long as there are good connections.

Make sure battery terminals and clamps are clean and tight so the charger "sees" the true voltage at the battery and isn't tricked by resistance and voltage drop at the terminals.
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#4607020 - 12/18/17 09:19 AM Re: Battery charging question [Re: SilverFusion2010]
UncleDave Offline


Registered: 06/02/14
Posts: 1703
Loc: Ca.
You can maintain and charge in the vehicle but you should not attempt a high volt desulphation/ recondition /recovery while connected.

I don't know if it has a sensing circuit to determine if its connected or not like my optimates do.


UD
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Cat 3126/2 MB3500/Titan/RX400H/17 Ridgeline
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#4607074 - 12/18/17 10:20 AM Re: Battery charging question [Re: SilverFusion2010]
JMJNet Offline


Registered: 09/06/07
Posts: 950
Loc: TX, USA
You can always disconnect the cable without taking the battery out.
Then hook up the charger?
I don't think that will harm the vehicle electrical system.
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#4607121 - 12/18/17 11:04 AM Re: Battery charging question [Re: SilverFusion2010]
BrocLuno Offline


Registered: 09/06/15
Posts: 5612
Loc: Kalifornia Kollective
It resets the ECU, clock, some radios, maybe other stuff. A smart charger that is not "reconditioning" a battery will be fine in the vehicle smile

If doing heavy duty reconditioning, do it out of the vehicle.
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Formerly in marine engineering. In an earlier life I owned my own petroleum tank truck, and hauled for the majors and independent's.

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#4607232 - 12/18/17 12:37 PM Re: Battery charging question [Re: SilverFusion2010]
SilverFusion2010 Offline


Registered: 06/29/11
Posts: 1669
Loc: Crawfordville FL
Yeah I'll leaning toward disconnecting the cables to charge. I may also use the 2 amp charge setting because I think it will go into desulfurization mode
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2010 Ford Fusion SE 3.0L V6, 178k miles M1 HM 10w-30

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#4607292 - 12/18/17 01:36 PM Re: Battery charging question [Re: SilverFusion2010]
meep Offline


Registered: 02/20/07
Posts: 3569
Loc: Southeast
supporting above comments on desulfation - I doubt any of the consumer desulfators have enough kick to harm vehicle electronics, which are heavily filtered. If anything, the vehicle will present enough capacitance to the charger to reduce miniscule desulfation spikes to being useless.

A higher power desulfator, I would NOT run with the battery connected. I have had higher power desulfators take out parallel battery chargers.
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#4607299 - 12/18/17 01:42 PM Re: Battery charging question [Re: SilverFusion2010]
Kawiguy454 Offline


Registered: 06/01/15
Posts: 596
Loc: Arizona
There is no Mode in an automotive battery charger that the vehicle will get fried from. To think any different is just ignorant. Automotive electronics are engineered electrically and are generally much higher quality than what you find in a Chinese made TV.

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#4607363 - 12/18/17 02:42 PM Re: Battery charging question [Re: SilverFusion2010]
SHOZ Offline


Registered: 06/28/03
Posts: 5802
Loc: Illinois
Hook the ground to the engine last too.
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2008 Hyundai Accent 1.6L 5 sp manual hatchback
2010 Hyundai Genesis Coupe Track 2L Turbo 6sp manual

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#4607438 - 12/18/17 04:00 PM Re: Battery charging question [Re: SilverFusion2010]
barryh Offline


Registered: 01/09/16
Posts: 313
Loc: Cheshire, England
The car owners manual may state the maximum safe charging voltage. Mine says 14.8 volts.
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Barry

1979 BMW R45 (Triple QX 5W40)
2009 Mercedes C180K (Shell Helix Ultra 5W40)

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#4607517 - 12/18/17 05:48 PM Re: Battery charging question [Re: SilverFusion2010]
SilverFusion2010 Offline


Registered: 06/29/11
Posts: 1669
Loc: Crawfordville FL
So. 2amp desulfurization or 10amp desulfurization charge rate. It's a 45aH battery
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2010 Ford Fusion SE 3.0L V6, 178k miles M1 HM 10w-30

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#4607529 - 12/18/17 05:58 PM Re: Battery charging question [Re: SHOZ]
eljefino Offline


Registered: 06/15/03
Posts: 32763
Loc: ME
Originally Posted By: SHOZ
Hook the ground to the engine last too.


Plug in the charger's AC connection last.

If you do a hot n heavy charge that burps acid your car will appreciate you doing that somewhere else. 10 amps should not do this, though.

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#4607592 - 12/18/17 06:54 PM Re: Battery charging question [Re: SilverFusion2010]
SilverFusion2010 Offline


Registered: 06/29/11
Posts: 1669
Loc: Crawfordville FL
Which will be more effective at desulfating the battery? 10amp or two amp charge?
_________________________
2010 Ford Fusion SE 3.0L V6, 178k miles M1 HM 10w-30

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#4608602 - 12/19/17 06:45 PM Re: Battery charging question [Re: SilverFusion2010]
SilverFusion2010 Offline


Registered: 06/29/11
Posts: 1669
Loc: Crawfordville FL
Ok so I think this battery is about to become a core charge unless a miracle happens overnight. Ran the battery down to 8.9V with headlights and stereo. Hook up the prologix 2320, started 10amp charge. It did not go into desulfurization mode. I can SEE the white crystals on the plates through the watering holes!

I might pick up a battery minder or a dedicated desulfurization charger if I can find one.

Anybody know of a 96R group size or something that will fit and has both top posts and side terminals?
_________________________
2010 Ford Fusion SE 3.0L V6, 178k miles M1 HM 10w-30

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