Description:
Lead-acid batteries produce hydrogen gas when charging. But if the battery box is left open to vent gas in cold climates, the batteries get too cold and battery capacity is significantly reduced. A vent that solves this problem is especially important when battery boxes are placed in basements, garages and sheds. When heat rises in the structure, a low pressure area forms around the box, cool air flows into the box and gasses vent into the structure. The Power Vent controls battery box venting, removing hydrogen gas while reducing cold air infiltration into the box. The Power Vent contains a gravity-operated damper that normally stays closed. When connected to a voltage controlled relay the fan operates only when the batteries are being charged and blows gas vapors out.

Designed for battery banks under 2200 AH and charge rates under 125 amps. The Power Vent Fan can be operated from:
 AUX Relay on a Xantrex SW inverter,
 AUX Relay of an Outback FX Inverter or MX/FM Charge Controller  (AUX uses 12v fan ),
 by a voltage controlled switch or by direct connection to the batteries via a fuse.

Specifications for the 12 and 24 Volt Versions:
 Uses < 3 watts
 Air Flow = 6 cfm with a 360° maximum change of direction.
 Dimensions: 4" diameter x 7.25" with a 2" PVC pipe socket on the inlet and outlet.

Specifications for the 48 Volt Version:
 Uses < 6 watts
 Air Flow = 8 cfm with a 360° maximum change of direction.
 Dimensions: 4" diameter x 10" with a 2" PVC pipe socket on the inlet and 3" on the outlet.

What's Included:
 24Vdc Power Vent Fan
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