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Wisdom NWB-25A Fast Smart Charger for KL Series Lamps

The NWB-25A is a portable, smart (intelligent) charger specifically designed for Wisdom KL series lamps with LiIon batteries.

Recommended for KL8M, KL8MS, KL12M and KL12MS Wisdom cap lamps. Not suitable for use with the ATEX GII or ATEX M1 Wisdom KL lamps since these lamps need to be charged on the standard chargers to maintain the ATEX rating.

The charges uses the industry-standard and very robust 'keyway' charging pin, which is inserted into the lamp head and secured with a half turn.

Charging is indicated by a simple LED indicator; red for charging, flashing green for fully charged. The charger correctly conditions the lamp battery and automatically switches off at the end of the charge sequence, preventing over charging and allowing the battery to be topped up safely and at any time.

AC and DC input, allowing the charger to be used with the mains supply or - with the optional DC cable - from a 12V car/van accessory power point.


Please note, this charger is suitable for Wisdom brand lamps only. This charger must not be used with any other brand of miners lamp (for example Oldham, Gok Ang etc.) even if they physically fit onto the charger. If in any doubt please contact us before purchasing.
Manufacturer: Wisdom
£45.00 incl VAT
  • Lamp capacity: 1
  • Supply voltage: 100-240V AC ±10% 50-60Hz 14W single phase
  • Output voltage: 4.56V
  • Output current: 2,400mA
  • Width: 116mm
  • Depth:76mm
  • Height: 56mm
  • Weight: 215g
  • KL5M: 4 hours
  • KL8M: 5.5 hours
  • KL12M: 6.5 hours
  • KL4MS: 2.5 hours
  • KL5MS: 4 hours
  • KL8MS: 5.5 hours
  • KL12MS: 6.5 hours
  • KL5M MSHA: 5 hours

Note: charging times are only displayed for compatible lamps, if a lamp does not show in the list above it is not compatible with this charger model.

Products specifications
Lamp capacity 1
Suitability Wisdom KL8M, KL8MS, KL12M and KL12MS Lamps (not suitable ATEX GII and ATEX M1 KL lamps)
Type Fast Smart (Intelligent) Charger
Supply voltage 100-240V AC ±10% 50-60Hz 14W single phase
Output voltage 4.56V DC per charge port
Output current 2,400mA per charge port
Width 116mm
Depth 76mm
Height 56mm
Weight 215g