Do not use lithium cranking batteries with Mercury outboards or stern drives
27 Mar.,2024
Originally Posted by
kandkkustomzhydrographics
Originally Posted by
Im so tired of hearing this honestly. Mercury will not void a warranty if a lithium iron phosphate dedicated cranking battery battery is used. This comes right from a dealer who services Mercury as well as sells and installs lithiums. Note the words "Lithium Ion". Not LiFePo4...lithium ion is a very unstable chemistry. Lithium iron phosphate is super stable. It was also written before Lithium iron Phosphate dedicated cranking batteries with the correct BMS to handle the large voltage spikes from the 4 stroke outboards alternators were developed.
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