Engine: Electricity

1. A Nickel-cadmium batteries should only be discharged 50% before recharging.
2. B When mixing electrolyte always add acid to the water.
3. C The state of charge cannot be determined by the specific gravity values.
4. D The electrolyte of an idle nickel-cadmium battery must be replaced monthly to maintain battery condition.

Tip: press A-D to answer