E-TEC Engine Starting Battery Specification Speculation
Posted: Wed Jan 11, 2017 1:37 pm
Any opinions as to why the [engine cranking battery for an Evinrude E-TEC engine] MCA rating is as high as it is?
[Note: while not mentioned here, the MCA rating for an E-TEC V6 engine battery is recommended to be 1,000-MCA for use in temperatures below 32-degrees-F or extreme service, or 845-MCA for temperatures above 32-degrees-F or normal service--jimh]
A starter motor normally draws about 200-Amperes peak or less. The E-TEC apparently needs about 1000-Watts (83 Amperes at 12-Volts or 18-Amperes at 55-Volts) to operate itself on; so why the battery requirement being what it is?
Anyone care to speculate?
[Note: while not mentioned here, the MCA rating for an E-TEC V6 engine battery is recommended to be 1,000-MCA for use in temperatures below 32-degrees-F or extreme service, or 845-MCA for temperatures above 32-degrees-F or normal service--jimh]
A starter motor normally draws about 200-Amperes peak or less. The E-TEC apparently needs about 1000-Watts (83 Amperes at 12-Volts or 18-Amperes at 55-Volts) to operate itself on; so why the battery requirement being what it is?
Anyone care to speculate?