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10. CONTROL PANELS/OPERATING INSTRUCTIONS
NOTE: A buzz, or hum is normal when the output cables have been disconnected and
the AC power cord is still connected to an electrical source (i.e. wall outlet).
MODEL PS-1022MA:
Two switches permit Battery Type and Charge Rate selection.
Switch #1 (3 Modes)
Mode 1 – Manual Position: Use for charging in 2 Amp or 10 Amp charge rates on 12 Volt
batteries only. This charging must be monitored and manually stopped when the battery
is charged. Overcharging will damage the battery.
Mode 2 – Automatic Position for Conventional Batteries. If you are not sure of your bat-
tery type, use the (regular) conventional setting.
Mode 3 – Automatic Position for Maintenance-free and Deep-Cycle batteries.
Switch #2 (2 Charge Rate Modes)
Mode 1 – Select the 2 Amp setting to charge small 12 Volt batteries (31 Ah or less) or to
warm larger lead-acid batteries.
Mode 2 – Select 10 Amp for larger 12 Volt batteries for a faster charge.
2 A10 A
SELECTOR
BATTERY TYPE
SELECTOR
CHARGE RATE
MANUAL AUTOMATIC
AUTOMATIC
MAINTENANCE-FREE
DEEP-CYCLE
CONVENTIONAL
LOW MAINTENANCE
(SWITCH #1) (SWITCH #2)
MODEL PS-1275A:
Two switches permit Battery Type and Charge Rate selection.
Switch #1 permits selection of either Conventional or Maintenance Free and Deep-
Cycle batteries. If you are not sure of your battery type, use the (Regular)
Conventional Setting.
Switch #2 (3 Charge Rate Modes)
Mode 1 – Select 2 amp automatic for 12 volt smaller (<31 AH [Ampere Hour]) or warm
larger lead-acid batteries.
Mode 2 – Select 12 amp automatic for larger 12 volt batteries for a fast charge.
Mode 3 – Select 75 amp Engine Start to assist in engine cranking of 12 volt systems.
DO NOT use on 6 volt systems. Use the 75 amp engine start position for
cranking automobiles or light trucks. Use only with battery in the vehicle. This will reduce
the chance of damaging sensitive electronic equipment in the vehicle.
DEEP CYCLE
BATTERIES
CHARGE RATE
BATTERY TYPE
REGULAR
BATTERIES
2 AMP
75 AMP
ENGINE START
12 AMP
(SWITCH #2)
(SWITCH #1)