Rechargeable drills are classified according to the voltage of the rechargeable battery block, and there are 7.2V, 9.6V, 12V, 14.4V, 18V and other series.

According to battery classification, it can be divided into two types: lithium battery and nickel-chromium battery. Lithium battery is lighter, battery loss is lower, and the price is higher than that of nickel-chromium battery.

Main structure and features

It is mainly composed of DC motor, gear, power switch, battery pack, drill chuck, casing, etc.

working principle

The DC motor rotates, and after being decelerated by the planetary deceleration mechanism, it drives the drill chuck to rotate to drive the batch head or drill bit. By pulling the levers of the forward and reverse switches, the polarity of the DC power supply can be adjusted to change the forward or reverse rotation of the motor to achieve disassembly and assembly operations.

Common models

Common models of rechargeable drills are J1Z-72V, J1Z-9.6V, J1Z-12V, J1Z-14.4V, J1Z-18V.

Adjust and use

1. Loading and unloading of the rechargeable battery: Hold the handle tightly, and then push the battery door to remove the battery. Installation of the rechargeable battery: Confirm the positive and negative poles before inserting the battery.

2. To charge, insert the rechargeable battery into the charger correctly, at 20℃, it can be fully charged in about 1h. Note that the rechargeable battery has a temperature control switch inside, the battery will be powered off when it exceeds 45°C and cannot be charged, and it can be charged after cooling.

3. Before work:

a. Drill bit loading and unloading. Install the drill bit: After inserting the bit, drill bit, etc. into the chuck of the non-switch drill, hold the ring tightly and screw the sleeve back tightly

, clockwise when viewed from below). During operation, if the sleeve is loose, please tighten the sleeve again. When tightening the sleeve, the tightening force will increase

the stronger.

To remove the drill: Hold the ring firmly and unscrew the sleeve to the left (counterclockwise when viewed from the front).

b. Check the steering. When the selection handle is placed in the R position, the drill is rotated clockwise (as viewed from the back of the rechargeable drill), and the selection handle is

When deploying +, the drill bit rotates counterclockwise (viewed from the back of the charging drill), and the “R” and “” symbols are marked on the body of the machine.