A Question for you auto sparkies.
Submitted: Saturday, Mar 29, 2008 at 19:16
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Steve from Top End Explorer Tours
I have a Mariner magnum 40 horse Out board motor with electric start.
Would this motor be able to charge a 55 amp hour battery while started and power a old Engel fridge and I mean old 20 years.
The idea is to use the fridge in the boat, and use the battery to start the boat and power the fridge, could the motor charge the battery at a better rate that the fridge would use?
Cheers Steve
Reply By: Derek from Affordable Batteries & Radiators - Saturday, Mar 29, 2008 at 23:05
Saturday, Mar 29, 2008 at 23:05
I would not risk it.
Rather take a 2nd battery just for the fridge. The specs on the motor say 11 amps but that would be max at max revs and a willing battery.
Specifications:Propshaft Rated Horsepower 40hp (29.8kw)
Max RPM at Full Throttle: 4500-5500
Cylinders/Configurations: 3
Displacement: 42.5 cu in (697cc)
Bore & Stroke: 2.68" x 2.52" (68 mm x 64 mm)
Cooling System: Water-cooled, with thermostat & pressure-controlled
Ignition System: Modular CDI
Starting: Manual or Electric
Gear Ratio: 2.00:1
Gear Shift: F-N-R
Steering: Remote or Tiller
Alternator System: 11 amp (130 watt)
Trim Positions: 3
Exhaust System: Through prop
Lubrication System: Single point variable ratio
Fuel Induction System: Loop-charged (1 carb)
Operator Warning System: Overheat, low oil level
Shaft Length: Short 15" (381mm) Long 20" (508 mm)
Weight: 152lb (69kg)
Counter Rotation: N/A
Fuel Tank: Separate 6.6 US gal (25 litres)
Propeller Option: See dealer
Prop Selection (Pitch): 8"-19"
Propeller Drive: Splined rubber hub
Oil Injection: Std on electric N/A on manual
Carb Star Rating: N/A
SmartCraft Capabilities: N/A
AnswerID:
295503