[header] How to charge a forklift battery [title] Be sure the charger is correctly matched to the battery. [step] This means that the charger has the correct output voltage (12 , 24 volt , 36 volt , 48 volt, etc). Also, the output ampere hour rating on the charger is closely matched (within 10 %) of the ah rating of the battery. 
[title] Be sure the charger cables are not damaged or heat worn. [step] The connectors should be in good shape, not damaged or cracked.