So far so good

jitterbug127

Senior Chief Petty Officer
Joined
Feb 6, 2023
Messages
669
2 things to report: The lithium starting battery I have used for the last 2 seasons has been perfect. My outboard is a 1980 35 HP tiller Johnson that only has the electric starter. Not the rectifier or stator so no charging available. I have run my fish finder and started off same 20 ah battery. Its been great.

I also had the motor mounts replaced on my outboard, and i have seen a 1.2 mph top speed improvement. I did not expect this. Motor looks more stable when I'm hauling it down the road too.
 

saltchuckmatt

Captain
Joined
Jul 19, 2019
Messages
3,145
2 things to report: The lithium starting battery I have used for the last 2 seasons has been perfect. My outboard is a 1980 35 HP tiller Johnson that only has the electric starter. Not the rectifier or stator so no charging available. I have run my fish finder and started off same 20 ah battery. Its been great.

I also had the motor mounts replaced on my outboard, and i have seen a 1.2 mph top speed improvement. I did not expect this. Motor looks more stable when I'm hauling it down the road too.
Yes but did you put the sheet ice racing blade on it yet? Lol....

Thanks for the report. New style batteries have come along way.
 

FishAtFive

Seaman
Joined
Sep 3, 2025
Messages
62
I've had the same experience with my lithium starting battery*. It lasts days without needing to charge. Provides a steady current no matter if it's at 80% or 40%. Just flat. And I removed/disconnected the stator and rectifier so will never need to replace those parts. The only downside so far I have found with lithium is that some of the old electreonics cant handle it, like for example my massive 24 pound trolling motor that is almost 40 years old will blow a fuse if you run it on the highest speed for too long.

*Note: these are special "starter" LiFePO4 batteries, not just any lithium battery.
 

Crosbyman

Admiral
Joined
Nov 5, 2006
Messages
6,016
lots of comments about these batteries on ETEC technology.. BRP recommends lead acid or AGM
 

jitterbug127

Senior Chief Petty Officer
Joined
Feb 6, 2023
Messages
669
Pardon my ignorance, what is an outboard motor mount?
They're are basically what holds the powerhead onto the midsection. They fail and there is a bunch of play in the powerhead. This can lead to decreased performance and in theory powerhead could be come detached. Idk how extreme motor mount failure can get, but I imagine horribly.
 

jitterbug127

Senior Chief Petty Officer
Joined
Feb 6, 2023
Messages
669
I've had the same experience with my lithium starting battery*. It lasts days without needing to charge. Provides a steady current no matter if it's at 80% or 40%. Just flat. And I removed/disconnected the stator and rectifier so will never need to replace those parts. The only downside so far I have found with lithium is that some of the old electreonics cant handle it, like for example my massive 24 pound trolling motor that is almost 40 years old will blow a fuse if you run it on the highest speed for too long.

*Note: these are special "starter" LiFePO4 batteries, not just any lithium battery.
Same i have a 20 ah starter LiFePO4 battery. Its been great. My 100 Ah trolling motor battery is doing great too.
 
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