Switch mode lead acid chargers are designed to effectively charge sealed lead acid batteries while protecting the batteries from overcharging.All charger ratings are based on a nominal input of 90-264VAC/47-63Hz.The output current ranges from 500mA to 1.3A.

Features:

• 3-step charge control

• Current detection as charge termination

• Switch mode charger with universal input voltage

• Available in 6V, 12V and 24V versions

• Protected against reverse polarity and short circuit

• Medical approved (EN 60601)

• LED status indicator

• Custom specifications on request

Category Specification

Model number 452240-SB

Input rating Nominal 90-264VAC/47-63Hz

Nominal voltage rating12VDC

Maximum output power14.7W

Switch frequencysize="2">≈ 40kHz

Leakage current from battery  ≈ 0

Operating/storage temperature-25C - +40C /-25C - +85C

Ripple     < 100 mV p-p

Efficiency (at 100% load, 230V)78%

Insulation class Class II

Insulation voltage 4000VAC (primary) / 5640VDC (secondary)

Electrical safety approvalsUL 60601-1, EN 60950, EN 60601-1, EN 60335-2-29

EMC standardsEN 60601-1-2 (Medical), EN 61000-6-3 (Emission), EN
61000-6-1 (Immunity)

Reliability (MIL-GDBK-217F) MTBF > 250.000 hours at 30?C and full load

Input connection 2 pin IEC320-C7 (input cordset not included)

Output connection2.5mm x 5.5mm x 9.5mm barrel plug, center positive*

Dimensions/weight 3.55” x 1.7” x 1.26” (90 x 45 x 32mm) / .25 lbs (115g)

Recommended battery capacity3 - 12Ah

*other output connection options available upon request

LED status indicator:

The lead acid charger has an LED status indicator to inform the user of its status. During step 1 and step 2, the LED will appear red in color. During step 3, the LED will appear green in color.

Functionality:

Once the charger is attached to a sealed lead acid battery and plugged in, the charging process will begin. The charger will subject the lead acid battery to three steps of charging.

In the first step, the charger will enter into ‘fast charge’ mode. During this step, the charger is in constant current mode with the current rate remaining at its maximum value.

In step two, the battery will be nominally 80-95% charged, and the charger will switch into constant voltage mode (current is no longer being provided at its maximum rate). The charger will continue to provide a constant voltage until the charge current decreases to the charge termination level.

The third and final step will place the charger in standby/ready mode as the battery will be fully charged. Because the charge voltage is at a standby level, the charger can continue to be connected to the battery. Should the battery be used, the charger can return to rapid charging (step 1).

Charge control values: