'Gravity Ball'
Battery Hydrometer
(Durite Part: 0-040-00)
£3.80 inc. VAT
Standard Delivery
£4.80 inc. VAT
'Gravity ball' for automotive and cycle lead batteries, functioning with less than 5cc of electrolyte. Gives a simple and quick check of battery state of charge.
No ball floating
SG less than 1.1.75; Flat
1 ball floating
SG between 1.200-1.225; 1/4 charged
2 balls floating
SG between 1.225-1.250; 1/2 charged
3 balls floating
SG between 1.250-1.280; 3/4 charged
4 balls floating
SG higher than 1.280; 4/4 charged
Specific gravity range; 1.175-1.280˚ SG at 15˚C
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