2017 G2 hooked to lithium battery

[JAYWAT]

Has anyone had any issues with the charging system on a 2017 evinrude G2 hooked to a lithium battery ?
I have a nextgen lithium LiFePO4.

[Flash2]

My 2015 G2 250 is on its 7th year with a relion 100ah lithium battery. Be sure to check the specs. of the battery and that it is ok for starting and has the amps needed. Also the charging voltage.

[blkfalc4]

Use a Relion 100Hp on my G2 with never an issue.

[Bighare2]

For the record. Evinrude does not recommend nor endorse LIon batteries. They say the engines charging system is designed for lead acid batteries and use of lithium ion batteries may require additional equipment to ensure proper charging. You will find many reports of successful and No problem installations.

Here is an excerpt from their 2017 service bulletin.
February 16, 2017
Service Bulletin No. 2017-02(D) Models: All Evinrude® Outboards

SUBJECT: Revised Battery Recommendations

This bulletin is to inform Evinrude dealers of a revision to the battery recommendations for all Evinrude outboards.

The battery charging system of Evinrude outboards is designed for use with lead acid type batteries ONLY, including “AGM” and “Gel” type batteries.

If other battery types, such as lithium ion batteries are used with an Evinrude outboard, installation of additional equipment may be required as defined by the battery manufacturer.

[JR19]

There is multiple types of lithium batteries. The 2017 service bulletin in reply#4 specifically addresses lithium ion. The OP is asking about the use of a lithium LiFePO4. Since the service bulletin specifically calls out the ion type of lithium battery is it safe to assume LiFePO4 is okay to use? I know a few people using a LiFePO4 as a cranking battery on motors other than Evinrude. I can't say that I personally know anyone using a Lithium LiFePO4 or any type lithium on a Evinrude as a cranking battery. So I guess my question is what is Evinrude's stance on using a lithium LiFePO4 as a cranking battery.

[BigBass044]

I’m Running an Ionic Lithium 100 AMP as mf cranking battery for my 2012 Evinrude E-Tec G1. Has never given me any issues

[Bighare2]

……………So I guess my question is what is Evinrude's stance on using a lithium LiFePO4 as a cranking battery.

And that answer is one we will never know - unfortunately.

[JR19]

And that answer is one we will never know - unfortunately.

My opinion may not count in the eyes of Evinrude or other people but I think the answer to my direct question is in-directly answered in the service bulletin. In my opinion the service bulletin singled out lithium ion and never mention other types of lithium batteries. Granted I don't believe everything I read on the internet but there is enough chatter out there of people using a lithium LiFEPO4 battery as a cranking battery in marine applications to make me believe its okay.

However with the above being said I do personally know one person who had an issue with a LiFePO4 as a cranking battery. It was on a Yamaha 250 SHO. At high rpm his big motor would shutdown because his battery went into sleep mode. I was told his specific battery has a safety feature where it went into sleep mode when it sense too high of a voltage input. Now here is what has me puzzled about his situation...He says this only happen when everything was turned off and the battery was not powering accessories. If he turns on multiple graphs and accessories his motor does not shut down. I find it odd but he says as long as he is running his live sonar and accessories at wide open rpm his motor will run but if nothing is on it goes dead. I have never been in his boat but this is how he explained the situation to me. I didn't mean to get side track with what happen on A SHO but I do find the relevance of his LiFePO4 being relevant to this discussion.

[Bighare2]

Just to clarify-It is not that your opinion does not count, because you do know there are no Evinrude eyes any more? There can be no answer from something that no longer exists.

[MR 188 Elite]

I run a 2017 225 G2. On the recommendation of my dealer it is connected to Miller Tech 125 amp lithium battery. Running it for 2 years now, no issues.

[-1limb]

I run a 2017 225 G2. On the recommendation of my dealer it is connected to Miller Tech 125 amp lithium battery. Running it for 2 years now, no issues.

Thanks this is helpful. About to put one in mine!

[86 inches]

Some dealers don't know crap about the G2. When I bought mine, they didn’t know where to add oil. Then they recommended that I not use an on-board water fuel separator. They didn’t do a fuel lift pump vacuum test as required in the PD&I. When missing the water pressure reading on first start up, I had to ask them to enable the digital transducer in Evdiag (they were sure that it enabled automatically.) And that's just a few examples. I would certainly question a dealer that recommended a lithium cranking battery.

[Impulse Lithium]

Our 12v-100Ah All purpose is a great option

Best BBC Pricing PM Sent

[KandKKustomz]

PM sent

[mactlman]

fun to watch the lithium guys go after it!!! in direct sales also and in a downturn every bit helps