Battery Charger, Lead Acid Batteries: 40W

The 9940 series is part of a family of 3-Step chargers from 10 – 240 watts. These 3-step chargers are designed for Cyclic applications, where the need to re-charge a battery as quickly as possible is the main requirement.

The charger operates in a boost/timer mode for approximately 2 – 3 hours. At the end of the timer period, the charger will return to a Float Voltage level, where it can be left on indefinitely. The timer is automatically activated when the AC power is switched on.


Model  Output Cycle Voltage Float Current A Battery Capacity 
9940 – 12 14.7V 13.8V 2.3A 9 – 60AH
9940 – 24 29.5V 27.6V 1.3A 4 – 30AH
9940 – 36 44.1V 41.4V 0.9A 3.20AH


Input Voltage 90 – 264VAC
Output Power 40 Watts
Output Voltage 12V models: 13.8V float
24V models: 27.6V float
36V models: 41.4V float
Efficiency: Typically 81%
Load Regulation ±1%
Line Regulation ±0.5%
Operating Temp  -10°C to +40°C
Dimensions 107 x 67 x 37mm
Weight 250g