• £ 0.00
Panasonic 18v Li-ion Battery 4.2Ah

Panasonic EY9L51B31 18V 4.2Ah Lithium-ion Battery for Cordless Tools

Product Code: PS-EY9L51B31
£78.33 Ex Vat
£ 94.00 Inc Vat
Need Help?

Need help? Call 0141 883 4794

3-4 Days Dispatch

3-4 Days dispatch

Panasonic 18v Li-ion Battery 4.2Ah

The Panasonic EY9L51 B31 18V 4.2Ah Lithium-ion battery is compatible with all 18V Panasonic slide-type tools (including dual-voltage and triple-voltage), and the EY0L81B and EY0L82B chargers.

What are the key features of this 18V Lithium-ion battery?

  • 250% longer lifetime than Panasonic's previous Lithium-ion batteries
  • Individual monitoring of battery cell voltage: each 3.6V segment is monitored by a sensor to ensure optimal discharge control, preventing overcharging and overdischarge
  • Battery Overheat Protection Sensor (OPS): a temperature sensor cuts-off power to the motor before the battery's temperature reaches a dangerous level and notifies the user via a flashing light on the tool's control panel
  • Heat Resistance Layer (HRL) technology: the battery cells are separated by a special coating which prevents the battery from overheating
  • Li-ion technology: no memory effect, no lazy battery effect, virtually no self-discharge, excellent power-to-weight ratio, and the ability to withstand colder temperatures in working order

Technical Spec.

  • Voltage: 18V
  • Capacity: 4.2Ah

Panasonic Cordless Tools
  More DEALS!  

See our complete
range of cordless
Panasonic Tools



Kelvin Power Tools only distributes genuine, brand new power tool batteries. We do not sell copy batteries.