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Old 12-28-2017, 12:54 PM   #2
Scraping Paint
City: CT
Country: US
Join Date: Mar 2017
Posts: 963
High amp loads pull down the voltage on depleted or worn down lead batts.

Are you sure they're 100% Full when starting? Have you checked all connections for resistance?

If so, likely batts need replacing.

Some chemistries hold voltage higher under high-amp loads.

LFP is ideal.

But going to higher AH capacity helps if you stick to lead.
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