Hi,   
      
   On this site i found table for battery voltage - http://www.sola   
   -electric.com/deep-cycle-battery-faq.html   
      
   State of Charge	12 Volt battery	Volts per Cell   
   100%	12.7	2.12   
   90%	12.5	2.08   
   80%	12.42	2.07   
   70%	12.32	2.05   
   60%	12.20	2.03   
   50%	12.06	2.01   
   40%	11.9	1.98   
   30%	11.75	1.96   
   20%	11.58	1.93   
   10%	11.31	1.89   
   0	10.5	1.75   
      
   Is this table appropriate for battery - 2V, 300Ah, Gel VRLA GFMJ, ZTE ?   
      
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