Nakayama PRO BS2900, User Manual

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12. Do not perform soldering or welding on the battery

13. Do not reverse direction of charging battery, reverse polarity of connections or excessive discharge of battery.

14. Do not connect the battery to charging outlets or car cigarette lighter socket.

15. Do not use the battery on equipment other than the designated pruning shear.

16. Do not direct contact with the inner parts of the battery.

17. Do not place the battery in microwave, high temperature or high pressured vessel.

18. Do not use the battery that is leaking

19. Keep the battery out of reach from CHILDREN.

20. Do not use or place the battery under direct sunlight(or in vehicle that are under direct sunlight) that will cause the battery to overheat or burn shorten-

ing the battery lifespan.

21. Do not use the battery in electrostatic environment (above 64v)

22. Do not use battery that is corroded, with unpleasant odour or unusual appearance.

23. If the skin or clothing comes into direct contact with battery fluid, wash with clear water immediately.

24. Maintain the battery fully charged when the pruning shear is not used for a long period of time.

Troubleshooting

Buzzer sound

Frequency Times

Failure

Solution Method

1

Battery capacity failure

Check if battery capacity 

is low

2

Communication failure

Check if every part of cable 

connector is loose

3

Blade failure

Oil on blade

4

Motor phase loss

Send it to local dealer for 

maintenance

5

Motor phase line short-cir-

cuit

Check if cable or head of the 

connector has short-circuit 

caused

Buzzer continuous ringing

Safety warning

Check whether body contact 

to the blade

Technical Data

Voltage: 20v

Cutting opening: 30mm

Battery: 2*4,0 Ah

* The manufacturer reserves the right to make minor changes to product design and technical specifications without prior notice unless these changes signif-

icantly affect the performance and safety of the products. The parts described / illustrated in the pages of the manual that you hold in your hands may also 

concern other models of the manufacturer’s product line with similar features and may not be included in the product you just acquired.

* Please note that our equipment has not been designed for use in commercial, trade or industrial applications. Our warranty will be voided if the machine is 

used in commercial, trade or industrial businesses or for equivalent purposes. 

* To ensure the safety and reliability of the product and the warranty validity, all repair, inspection, repair or replacement work, including maintenance and 

special adjustments, must only be carried out by technicians of the authorized service department of the manufacturer.

Usage and Care for Battery

1. Do not charge battery with ambient temperature below 32°F(0°C) or above 113°F(45°C)

2. Please ensure the battery is switched off before connecting the power cord to the battery.

3. Only use battery charger as supplied together with the pruning shear, the use of any other charger not matching to the charging specification of the bat-

tery may cause fire

4. Items such as paper dips, coins, keys, nails, screws, or any other conductive items must be keep away from battery when not in use

5. Do not disassemble the battery.

6. Do not short-circuit the battery

7. Do not use the battery beside heat source

8. Do not put the battery in fire or in water.

9. Do not charge the battery near fire or under direct sunlight

10. Do not insert nail into the battery, hammer the battery, stomp the battery, throw the battery or any other form of shocks to the battery.

11. Do not use battery that is damaged or deformed.