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Old 11-02-2018, 11:42   #1
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Weak hydrometer reading: what happens if...

you add sulphuric acid to the cells? Would it not strengthen the electrolyte?
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Old 11-02-2018, 13:42   #2
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Re: Weak hydrometer reading: what happens if...

Well yes it would but that won't help the battery regain charge.

The sg is just an indicator of the chemistry of the the + & - plates. A discharged battery has a different chemistry than a charged battery, the charge is not a direct function of the sg of the acid.

Tell doesn't permit a fuller explanation right now but I'm sure other will chime in or google will help.
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Old 11-02-2018, 17:07   #3
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Re: Weak hydrometer reading: what happens if...

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Well yes it would but that won't help the battery regain charge.

The sg is just an indicator of the chemistry of the the + & - plates. A discharged battery has a different chemistry than a charged battery, the charge is not a direct function of the sg of the acid.

Tell doesn't permit a fuller explanation right now but I'm sure other will chime in or google will help.
Don't add acid..just water when needed, preferably distilled water. Consider equalizing your battery/batteries, might bring some life back.
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Old 11-02-2018, 17:47   #4
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Re: Weak hydrometer reading: what happens if...

If you add acid then the sulphate that is sitting on the plates will harden there instead of turning into acid as the battery is charged
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Old 11-02-2018, 19:10   #5
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Re: Weak hydrometer reading: what happens if...

As much as winding your odometer back helps your car last another 100k
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Old 12-02-2018, 14:22   #6
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Re: Weak hydrometer reading: what happens if...

Or pour in a box of epsom salt, that'll fix it. A hundred YoRube! videos surely wouldn't all be lying.(G)
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