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Safe to Charge Battery Indoors?

Help, Advice and DIY Tutorials on Volvo's extremely popular car line -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

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viper69
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Safe to Charge Battery Indoors?

Post by viper69 » Mon Aug 06, 2018 8:49 pm

I have a Battery Tender battery charger.

Only used it in the garage while battery was in the 850.

Is it safe to remove the battery and charge inside my apt? Something tells me “NO”.

I’ll be home while it’s charging.

I don’t live in the same place, and no access to an outlet outdoors.

Thanks!
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Volvo 850 GLT 1995

5 Speed Manual transmission

122,500 miles and barely broken in

Previous:
'82 Volvo DL Wagon, 4 speed manual
'77 Saab 99 EMS, 4 speed manual

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loosenut
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Re: Safe to Charge Battery Indoors?

Post by loosenut » Mon Aug 06, 2018 9:12 pm

Yes. It is safe...only do not open the caps on top that expose the water and plates...set it on 2 amp setting and it will take a few hours..if you are going to be around then ok go to 40 amp setting give it 40 mins...
NOTE....most batteries have caps... Check water OUTSIDE!!!!! fisrt!!!!!!!!.......top with bottled water or tap....it really doesn't matter....don't go buying battery water rip off....just to top up...fill to first sign of concave appearances....then charge away....



viper69
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Re: Safe to Charge Battery Indoors?

Post by viper69 » Mon Aug 06, 2018 9:29 pm

Curious, this Interstate car battery I have doesn’t require water to be added.

In fact, I haven’t checked water levels in a battery since the 1970s when one used a mini turkey baster looking device which had different colored balls that would float.

My charger has only one “speed”. It works great but concerned about indoors, ie safe or not.


Volvo 850 GLT 1995

5 Speed Manual transmission

122,500 miles and barely broken in

Previous:
'82 Volvo DL Wagon, 4 speed manual
'77 Saab 99 EMS, 4 speed manual

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misha
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Re: Safe to Charge Battery Indoors?

Post by misha » Tue Aug 07, 2018 2:02 am

Don't charge it in the appartment...toxic fumes will escape through the vent valve.
Put it outside...on the balcony.
Discharged battery will take around 12-15 hours to full charge at 4A.


'97 850 2.5 20v /fully equipped/ Motronic 4.4 / polar white wagon
'91 Citroen XM 2.0 SI /fully equipped/mandarine red metallic
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'73 144 De Luxe
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viper69
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Re: Safe to Charge Battery Indoors?

Post by viper69 » Tue Aug 07, 2018 2:06 am

Thanks - had a feeling that would be bad idea.


Volvo 850 GLT 1995

5 Speed Manual transmission

122,500 miles and barely broken in

Previous:
'82 Volvo DL Wagon, 4 speed manual
'77 Saab 99 EMS, 4 speed manual

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Re: Safe to Charge Battery Indoors?

Post by Rattnalle » Tue Aug 07, 2018 2:40 am

The battery only releases hydrogen which isn't dangerous. flammable but you'd need to keep it in a box for that to be an issue.

And using a smart charger, which everyone should be by now, discussions about charge currents aren't really relevant apart from deciding how big a charger to buy.



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Re: Safe to Charge Battery Indoors?

Post by MrAl » Tue Aug 07, 2018 4:18 am

Hello,

I have charged my various lead acid batteries indoors and never had a problem. I make sure there is some ventilation.
Also, dont charge with too high of a current. For a regular car battery, probably 10 amps max is a safe level.
Of course make sure the charger does not try to over charge the battery either.
Also of course dont let the battery get shorted out, or else it could explode.
Also, no open flame or excessive heat near the battery.

The danger isnt really what might happen when you do everything right, the danger lies in what happens when you accidentally do something wrong. Batteries can explode so be careful, but with that care they usually dont explode.


I’ve been driving a Volvo long before anyone ever paid me to drive one.
1998 v70 on the road since April 2nd, 2015

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Re: Safe to Charge Battery Indoors?

Post by polskamafia mjl » Tue Aug 07, 2018 4:27 am

The engine bay of a car is a much more dangerous environment than an apartment and yet batteries thrive in that enviornment. There's no danger to charging a battery indoors.


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abscate

Re: Safe to Charge Battery Indoors?

Post by abscate » Tue Aug 07, 2018 9:17 am

Do not attempt to cut hedges with your battery.

Do not drink battery acid.

Do not hold above your head and drop on your head.

I think I have covered everything else.
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Re: Safe to Charge Battery Indoors?

Post by bmdubya1198 » Wed Aug 08, 2018 12:26 pm

I wouldn't worry too much. If anything, just keep it by an open window. My cousin has charged batteries inside multiple times. I usually charge them in my garage, and that's somewhat inside. Still an enclosed space when the door is closed.

A smart charger is a good thing to have. I picked up a Viking 4 amp microprocessor controlled charger from Harbor Freight for $23 a while back. I've used it plenty of times and it works great to charge and maintain. You can change the settings for regular lead acid batteries or AGM, 6 or 12 volt. Plus it shows the voltage on the LCD.


2000 V70R Venetian Red/Charcoal M56 Swapped 190k
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