Electric Power drain when plowing

snowplow bob

Junior Member
Western New York
I have a 1989 F150 4X4 with a electric Meyers plow (1 year old aftermarket pump motor). Single battery set up. Here's my problem. 2 year old Alternator (probably 65 amps).
When raising or lowering the plow the voltmeter in the dash drops and than recovers slowly. After a while 10 to 15 minutes of continuous plow raising and turning the voltage is extemly low and does not recover for another 5 to 10 minutes! If I'm not careful and stall the truck I need to jump the battery to get started again!

When not plowing the charging system apears to function normallu

Do I go to Dual batteries, higher output alternator or what.

Any help or advice is appreciated thanks