As of 9/26/2022, Mercury has issued Service Bulletin 2022-19 stating that the listed engines will be permitted to use a Lithium Iron Phosphate Battery that is designed for engine cranking, as long as it meets the listed specifications:
-2.1L 75-115hp Fourstroke, ProXS and SeaPro Models
-3.0L 150hp Fourstroke, ProXS and SeaPro
-4.6L V8 and 3.4L V6 175-300hp Fourstroke, ProXS, SeaPro and Verado Models
-2.6L L6 200-400 Pro and Verado Models
-7.6L V12 500-600hp SeaPro and Verado Models.
-NO other engines approved at this time.
Minimum Specs Required:
-Chemistry/Format: Lithium IRON Phosphate designed for MARINE CRANKING USE.
-Minimum Cranking Amps: 800A for 8 second minimum @ 20 Degrees F
-Peak Charge Acceptance: 165A at 20-130 degrees F for one minute
-Max Charge Alternator Size: 150A at 20-130 degrees F
-Max Charge Voltage/Alternator Output: 14.8V
-Reserve Capacity (RC25 @ 80F): 135 Minutes
-Ingress Protection (IP rating): IP67 or greater.
Cautions that use at temperatures below 32F may require additional equipment such as a battery heater.
Bulletin also lists a Relion Battery that has been evaluated and meets the above requirements: RB100-HP.
https://relionbattery.com/products/lithium/rb100-hp
Originally Posted by SB 2022-19
As of 9/26/2022, Mercury has issued Service Bulletin 2022-19 stating that the listed engines will be permitted to use a Lithium Iron Phosphate Battery that is designed for engine cranking, as long as it meets the listed specifications:
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