A single battery charge of an electric pickaxe can last 2-3 hours
Use a drill bit with a diameter of 6mm, hole depth of 5 cm, and a 4,000 mAh, 42 volt lithium battery. Between 38 and 50 holes can be drilled in the main concrete beam. The large 12A battery has between 300 and 400 holes. However, there is a 2 meter wired connection between the battery and the electric hammer, and it is equipped with a quick connector, so there is no problem working on the construction site for a day.
It is best to equip a heavy-duty electric hammer with a battery. If it has a small battery, it will heat up easily and have a short lifespan, due to the starting current of a heavy hammer. -The electric duty hammer is great. The working efficiency is 2 times that of a lightweight and rechargeable electric hammer. I paid dearly for the costs ofschooling on batteries, but 12 small batteries cannot hold one battery. The starting current of heavy-duty electric hammers and light-duty electric hammers is different, and the number of holes will be slightly different.
This tool is easy to use and can drill 38 to 50 holes.
The rechargeable electric hammer can be used after fully charging the battery. Normally it can be used for about two hours. If used for polishing, it can last about three hours. A drill bit with a diameter of 6 mm, a hole depth of 5 cm and a 4000 mAh 42 volt lithium battery can drill 38 to 50 holes in the main concrete beam.