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I'm upgrading my Sea Ark with a 2019 DF4 175 Suzuki to Lithiums . Was told by amped outdoors that I shouldn't us a Lithiumn for a starter battery as it's not reccomended by manufactuer. Got a 36 volt to replace the 3 wet cells and a 100 amp hour to run all the electronics but left one of the wet cells per there advice. Really would like to get rid of that battery but concerned since motor is still under warranty. Advice? Scott
I would err on the side of the engine mfr. Mfr’s look for any reason to make warranty coverage difficult for the consumer. I wouldn’t give Zuni an excuse to deny coverage.
I am keeping my wet cell for my Mercury for just this reason. Out of warranty I might think differently. JMHO
Not reccomended by the battery manufacturer or the engine manufacturer ? Is it because the alternator on the four stroke outboard is not designed to charge a lithium battery ?
Quote:
Originally Posted by "G"
I could see a problem with a lithium's bms shutting down the battery when alternator fully charges battery to it's cut off voltage. This essentially disconnects battery from the motor. A lot of motors need the battery to run, even if that battery is fully charged. That interrupt may cause running issue. You can also read online that lithium starting batteries can be hard on alternators. It seems people are running lithium starting batteries with out issues, so more time will tell.
The BMS on a lithium battery will shut off at 15 volts. Should your motor put out more than 15 volts, the battery shuts down and can screw up the charging system on the motor. That being said, there are hundreds , if not thousands, using lithium for cranking without any problems.
Well Buckeye beat me to it....
I'm wondering if it's that or that the Lithium battery has a higher voltage output ??Quote:
Originally Posted by "G"
Mine have never gone over 13.4 volts output.Quote:
Originally Posted by CrappiePappy
Dakota makes a lithium for starting, might touch base with them. Don
Quote:
Originally Posted by Doninva
They're not the only ones. Several came up when I searched "lithium starter battery". That's why I was concerned about the slightly higher output maybe not playing nice with outboard electronics, and that may be why the outboard mfgr. doesn't recommend using them. :dono
Check with Drew as he is having a sale right now .
Ionic Lithium Batteries - Drewcraft LLC
https://www.crappie.com/crappie/blob...6-c09805d82c49
https://www.crappie.com/crappie/blob...c-9d73ab0f1711
Just to also add, some of these better lithium battery companies have designed their bms systems in their batteries to handle the big motors. Brunswick Corp. recently bought Relion Battery Co for example. Brunswick also owns Merc. Call some of the battery Companies too see what works best for your motor.
I'm running Lithium batteries on everything in my boat except the cranking battery. It is a deep cycle wet battery. I'm wondering in case my cranking battery craps out while I'm on the water, can I use one of my Lithium batteries to jump start my battery for the motor using jumper cables and not hurt my motor?
I am sure you could do it as for damage I am not sure. I carry a small jump pack with me on the boat that is about 3 inch by 8 inches.
Attachment 412901
No problem on a jump. Many jump start packs use lithium batteries.Quote:
Originally Posted by spindle
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