Forums Migration

Please read this thread

Recent Topics
Nio stock. How high will it go?
by motor_oil_madman - 07/12/20 05:34 PM
AAP Rotella Gas Truck Clearance
by Sam_Julier - 07/12/20 05:32 PM
Any 47RH Transmission Experts? CTD Ram
by JHZR2 - 07/12/20 04:58 PM
WM Magna1 10w30 gallon $5
by 2strokeNorthstar - 07/12/20 04:55 PM
I found a WWII movie for yinz to watch.
by JimPghPA - 07/12/20 04:45 PM
Jackpoint Jackstand Review
by RamFan - 07/12/20 03:03 PM
Lesabre Brake fluid capacity
by Ihatetochangeoil - 07/12/20 02:56 PM
Baking Cookies in the Car - 2.0
by Nick1994 - 07/12/20 02:17 PM
Dealer ruined my transmission!!!!
by John344 - 07/12/20 02:04 PM
Wax / Sealer Recommendations
by 92saturnsl2 - 07/12/20 01:45 PM
Horrible Duramax Aftermarket Filter Mod
by ToadU - 07/12/20 01:29 PM
Japan unveils timeline for indigenous fighter jet program
by gathermewool - 07/12/20 12:27 PM
NEW Rotella T6 15w40
by ToadU - 07/12/20 11:54 AM
2001 Silverado 1500 4x4 Alignment Concerns
by Blang - 07/12/20 11:37 AM
Full Synthetic for ATS V
by cadillactech - 07/12/20 11:33 AM
Gasoline engine oil in a diesel engine?
by LeslieX - 07/12/20 11:32 AM
Can I use IPA 70% to clean windshield?
by painfx - 07/12/20 09:47 AM
The Heat is on
by Snagglefoot - 07/12/20 07:39 AM
Newest Members
fxxkat, Ajreitano, Slick122, Ford4life76, Patrick_Hall1988
71916 Registered Users
Who's Online Now
91 registered members (4WD, 2015_PSD, 379KITTY, 53' Stude, 2004tdigls, 2003f7, 10 invisible), 1,953 guests, and 31 spiders.
Key: Admin, Global Mod, Mod
Forum Statistics
Forums67
Topics307,771
Posts5,317,469
Members71,916
Most Online4,538
Jan 20th, 2020
Donate to BITOG
Print Thread
Hop To
Greasy / Wet film around vents after 4amp charger used on it? #5439407 05/26/20 02:13 PM
Joined: Jun 2004
Posts: 608
D
DirtyApe Offline OP
OP Offline
D
Joined: Jun 2004
Posts: 608
I was trying out a new 4amp tender/maintainer on a new battery and afterwards noticed a damp/greasy film around the vent caps.

Normal I'm hoping? If so I might have a bad tender...

Re: Greasy / Wet film around vents after 4amp charger used on it? [Re: DirtyApe] #5439412 05/26/20 02:20 PM
Joined: Sep 2014
Posts: 1,771
W
WobblyElvis Offline
Offline
W
Joined: Sep 2014
Posts: 1,771
Could be the battery. How long was the charger on for? If you have a multi- meter, use it to check voltage and measure the current the battery is taking. Try another battery.

Re: Greasy / Wet film around vents after 4amp charger used on it? [Re: DirtyApe] #5439416 05/26/20 02:24 PM
Joined: Aug 2009
Posts: 4,410
J
JimPghPA Offline
Offline
J
Joined: Aug 2009
Posts: 4,410
OP, if you want anyone to make any intelligent response to your post, you are going to have to include much more details, like what is the AH rating of the battery, or group, manufacturer, what application, or any other significant info about the battery, and much more info about the charger. What type of battery AGM, gell, wet-cell exc. There are several different base type of chemistry that different batteries have, and there are many different sizes.

Your total lack of details is almost unbelievable, and what type of information are you looking for in response.

Information about how long the charger was charging the battery is a good start. But was the battery discharged to start with?

gigo, or in your case no info in = no info out

Last edited by JimPghPA; 05/26/20 02:28 PM.

Boy will I be happy when ALL vehicles on public roads are autonomous.


JimPghPa

Re: Greasy / Wet film around vents after 4amp charger used on it? [Re: DirtyApe] #5439440 05/26/20 02:56 PM
Joined: Aug 2017
Posts: 1,636
D
Dave9 Offline
Offline
D
Joined: Aug 2017
Posts: 1,636
Discharge the battery a good 25% deep, then repeat the charge cycle and monitor what the charger is doing, the voltage and current.

Odds are, it was either charging at too high a current for the bulk of the charge, or at (even at a lesser current) too high a float/maintenance charge rate at the end and outgassing excessively.

If you have no inclination to monitor it or modify it to remedy this, then I would return it for a refund, but it may be the design of the charger, not a "defect" per se.

Since it has vent caps, I assume you mean it is a normal vented, not sealed (with pressure valves) lead acid battery. I'd be sure the water level is topped off, low water can also reduce the current capacity before outgassing.

Re: Greasy / Wet film around vents after 4amp charger used on it? [Re: DirtyApe] #5439442 05/26/20 02:57 PM
Joined: Dec 2002
Posts: 44,290
J
JHZR2 Offline
Global Moderator
Offline
Global Moderator
J
Joined: Dec 2002
Posts: 44,290
It would be important to know what you measured with a multimeter, when charging. Plus the info Jim mentions above.

I had a battery tender waterproof 800mA go haywire for some reason and it was charging >15.5V continuously. It didnt do that when new... Fortunately it could only put out 800mA...

Re: Greasy / Wet film around vents after 4amp charger used on it? [Re: JimPghPA] #5439548 05/26/20 04:51 PM
Joined: Jun 2004
Posts: 608
D
DirtyApe Offline OP
OP Offline
D
Joined: Jun 2004
Posts: 608
Originally Posted by JimPghPA
OP, if you want anyone to make any intelligent response to your post, you are going to have to include much more details, like what is the AH rating of the battery, or group, manufacturer, what application, or any other significant info about the battery, and much more info about the charger. What type of battery AGM, gell, wet-cell exc. There are several different base type of chemistry that different batteries have, and there are many different sizes.

Your total lack of details is almost unbelievable, and what type of information are you looking for in response.

Information about how long the charger was charging the battery is a good start. But was the battery discharged to start with?

gigo, or in your case no info in = no info out



Apologies, I had initially written on mobile and now can provide some more details/


It's an interstate grp 65, ford f-150. Charger is a viking HF 4am tender/charger. Battery is a flooded type. Bottom line I'm tryng to figure out with limited knowledge if this is a normal thing during charging? I've never used a charger like this so I'm unsure. The battery was purchased for the vehicle a couple of weeks back and I simply wanted to make sure it was 'full' before putting it into service. It indicated charging from 13.1 to full (green), and 13.8 after about 12 hours.

Re: Greasy / Wet film around vents after 4amp charger used on it? [Re: JHZR2] #5439550 05/26/20 04:52 PM
Joined: Jun 2004
Posts: 608
D
DirtyApe Offline OP
OP Offline
D
Joined: Jun 2004
Posts: 608
Originally Posted by JHZR2
It would be important to know what you measured with a multimeter, when charging. Plus the info Jim mentions above.

I had a battery tender waterproof 800mA go haywire for some reason and it was charging >15.5V continuously. It didnt do that when new... Fortunately it could only put out 800mA...



No, simply let the 'smart' charger do it's work.

Re: Greasy / Wet film around vents after 4amp charger used on it? [Re: DirtyApe] #5439587 05/26/20 05:53 PM
Joined: Dec 2003
Posts: 10,953
E
Eddie Offline
Offline
E
Joined: Dec 2003
Posts: 10,953
Over filled electrolyte can cause this.


2014 CX5 Touring 2.5L :-)
Re: Greasy / Wet film around vents after 4amp charger used on it? [Re: DirtyApe] #5439602 05/26/20 06:16 PM
Joined: Sep 2017
Posts: 400
B
BlakeB Offline
Offline
B
Joined: Sep 2017
Posts: 400
I don’t know how the HF charger operates but my Battery Tenders will apply constant current (bulk charge)until the voltage rises to ~14.4 volts and then hold constant voltage (absorption phase) until the amperage drops below a certain level. Then the maintainer/charger switches to float mode and holds the battery at ~13.2 volts, which is below the gassing voltage.

https://www.stealth316.com/misc/deltran-battery-charger-algorithm-graphs.pdf

Re: Greasy / Wet film around vents after 4amp charger used on it? [Re: DirtyApe] #5441132 05/28/20 04:49 PM
Joined: Dec 2004
Posts: 363
G
George Bynum Offline
Offline
G
Joined: Dec 2004
Posts: 363
Originally Posted by DirtyApe
Apologies, I had initially written on mobile and now can provide some more details/


It's an interstate grp 65, ford f-150. Charger is a viking HF 4amp tender/charger. Battery is a flooded type. Bottom line I'm trying to figure out with limited knowledge if this is a normal thing during charging? I've never used a charger like this so I'm unsure. The battery was purchased for the vehicle a couple of weeks back and I simply wanted to make sure it was 'full' before putting it into service. It indicated charging from 13.1 to full (green), and 13.8 after about 12 hours.


I'm not a big HF fan on this type of product, but it appears to have good specifications ... if it meets them.

It has 4 modes, 2 or which are for standard flooded ... one of those for cold conditions. It is my OPINION that your float is too high, and there will be some electrolyte loss. As others have said, overfilled or overvoltage will cause this, but I doubt you have done damage unless the electrolyte is below plate level.

Previous Thread
Index
Next Thread

BOB IS THE OIL GUY® Powered by UBB.threads™