How Long 4500mah Battery Last. Your battery has Energy capacity of 35V 600mA 1 hour 21 Wh. You can approximate how long a battery will last by dividing its total charge in mAh by your nominal load current in mA.

While in use a maximum of 6 hours. The same battery would last for 8 hours if 500mA is supplied every hour. Lets see one real example.
Battery-powered tools have come a long way in the last decade.
Using Facebook Whatsapp Instagram Phone calls etc. Lets see one real example. Dont mess mAh and Ah 1Ah1000mAh. Although ideally a pack should be fully charged in 10 hours due to inefficiency it will probably take between 12 and 15 hours.
