[RE-wrenches] Battery Specific Gravity versus Electrolyte Level

[Jay]

Hi william

My experience shows me that first filling with water to normal full mark and then  eq provides the best results

Many years ago I had my own battery bank that needed an eq.  Newer batteries well maintained   They were low on water but within the normal range. After 2 eq the sg were not moving as much as I expected. 

After filling and giving it a few days of normal charging to mix I eq again and the numbers came out perfectly. Every battery I’ve done this technique with has worked well. 

It was explained this way to me. 
With less water you have higher acid ratio  meaning you need a higher charge voltage to eq making it harder to achieve.  Higher voltages create higher heat causing more damage to the battery. 



Jay
Peltz Power






> On Feb 9, 2021, at 6:36 AM, Mark Frye <markf at berkeleysolar.com> wrote:
> 
> My Rolls manual says:
> 
> "It is recommended to water the battery cells half way through the equalization. This is to
> assure the water is completely mixed into the electrolyte."
> 
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