I知 considering on replacing the traditional battery in my tender with a lithium battery. Has anybody done this? Any thoughts? I知 looking to increase the time I can run the stereo while decreasing weight.
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12-16-2021 03:29 AM #1
Considering Lithium Tender Battery
Dave & Trina
Benedetto
1989 60MY HATDK310
Sturgeon Bay/Ft. Lauderdale
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12-16-2021 08:13 PM #2
Re: Considering Lithium Tender Battery
I just bought one to use a trolling motor on my Nucanoe. Can't comment yet on how it works but it definitely is much lighter. I hear you need a waterproof battery box as any water can mess them up. I am working on that prior to launch.
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Re: Considering Lithium Tender Battery
Had a friend the got a very small lithium battery, I think a jet ski battery, and was able to fit it under the outboard motor housing, inside the motor. Worked great and no wires running around in the dingy. Motor was a 15 hp Honda. John
Mahalo V
1974 53 Motoryacht
Hull Number 406
San Diego, Ca. Ready 32 Nordic Tug, Brunswick Ga.
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12-23-2021 04:22 PM #4
Re: Considering Lithium Tender Battery
I talked with a tech guy a Dakota Lithium today. Great info. The long and short is I知 buying the Dakota DL+12V 64Ah start/deep cycle. Comes with a built in BMS and I値l add the Bluetooth shunt to monitor the battery from my phone. I値l let you know how it goes.
Dave & Trina
Benedetto
1989 60MY HATDK310
Sturgeon Bay/Ft. Lauderdale
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Re: Considering Lithium Tender Battery
Last week a power cat went up in smoke and sank at Chub. The cause of the fire? Surfboard lithium battery
No idea what brand or where it was made... likely China but not ready to used them unless I have toPascal
Miami, FL
1970 53 MY #325 Cummins 6CTAs
2014 26' gaff rigged sloop
2007 Sandbarhopper 13
12' Westphal Cat boat
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12-23-2021 06:33 PM #6
Re: Considering Lithium Tender Battery
The 787 was nicknamed sparky because of the batteries. One of the ways to prevent fires is to have a BMS (battery monitor system) which prevents over charging which is the source of heat that leads to a sparky event. Not sure if that was the case on the cat. I also hope no one was hurt.
Last edited by Sadey; 12-23-2021 at 07:54 PM.
Dave & Trina
Benedetto
1989 60MY HATDK310
Sturgeon Bay/Ft. Lauderdale
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Re: Considering Lithium Tender Battery
The family escaped unharmed except for their dreams of a 6 months bahamas cruise.
We have an eFoil on the 116 I run, big lithium battery but made in the US with an industrial grade charger. I still only charge it in the ER, away from flammable sourcesPascal
Miami, FL
1970 53 MY #325 Cummins 6CTAs
2014 26' gaff rigged sloop
2007 Sandbarhopper 13
12' Westphal Cat boat
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12-23-2021 11:18 PM #8
Re: Considering Lithium Tender Battery
It's not the external heat that is a big problem, its the internal heat that can be generated during the charging process (thermal runaway). I'm assuming your thought process of an ER only charging station is the ER is a more self contained and fire ready room. That is great thinking!
Dave & Trina
Benedetto
1989 60MY HATDK310
Sturgeon Bay/Ft. Lauderdale
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Re: Considering Lithium Tender Battery
Yes, safer place with auto fire system. I don稚 charge it after a run when the ER is hot but after it cools down. We have great blowers and the air con helps keeping it cool too.
The eFoil dealer recommended using a fire box for the battery. I may get oneLast edited by Pascal; 12-24-2021 at 08:00 AM.
Pascal
Miami, FL
1970 53 MY #325 Cummins 6CTAs
2014 26' gaff rigged sloop
2007 Sandbarhopper 13
12' Westphal Cat boat
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Re: Considering Lithium Tender Battery
I thought Lithium batteries were for deep cycle loads and not typically a good choice for "starter" loads. Maybe my information is old or incorrect?