Yamaha Drive with Allied Lithium batteries won't accept charge

[ChrisFaze]

I have a 2010 Drive upgraded to the hilt, 500A solenoid and 500A Alltrax controller, 6 inch lift with 14inch tires. Between late 2020 and 2021 I purchased 48v 30ah Allied Lithium drop ins. First two then followed a couple months later with two more. Since then cart has worked reliably well until around October of '23 when it would randomly start stopping on short runs after a full charge, then it would seem to take less and less charge, and now, finally, no charge. My first inkling was an old charging port and possibly corroded charger (original was Allied, but not IP rated) so I replaced both, new charger is another Allied. No charge. Finally last week I isolated each battery. two had 54v, one 5v and the last nothing. Of course these were all connected in parallel. Problem is NO battery accepts charge. I've attached the charging port to each individually and it will not show any battery accepting current.
Allied has been zero help other than to offer "$600 for two replacements" of my 4k 3 year old investment. This is a seldom used neighborhood cart, not a hill jumping 30mph daily run beast. I'm just at a loss, could all 4 of these be bad this quickly? If so what would you gurus replace them with in 2024?

[Volt_Ampere]

The problem with these in parallel with separate BMS's is that if one shuts down, you don't really know it - yes you lose range but that's not obvious unless you push it. Then a second shuts down and so on . Most likely, the batteries themselves may be ok. It's probably just a failed BMS. I favor one battery with one BMS not multiple batteries with their own BMS. These batteries themselves should probably last 10 years under normal use. My first Lithium cart that I built with USED Nissan Leaf modules is 8 years old - did that in early 2016. Still going strong. So there is absolutely no excuse for your batteries failing that soon.

[augiedoggy]

Originally Posted by ChrisFaze

I have a 2010 Drive upgraded to the hilt, 500A solenoid and 500A Alltrax controller, 6 inch lift with 14inch tires. Between late 2020 and 2021 I purchased 48v 30ah Allied Lithium drop ins. First two then followed a couple months later with two more. Since then cart has worked reliably well until around October of '23 when it would randomly start stopping on short runs after a full charge, then it would seem to take less and less charge, and now, finally, no charge. My first inkling was an old charging port and possibly corroded charger (original was Allied, but not IP rated) so I replaced both, new charger is another Allied. No charge. Finally last week I isolated each battery. two had 54v, one 5v and the last nothing. Of course these were all connected in parallel. Problem is NO battery accepts charge. I've attached the charging port to each individually and it will not show any battery accepting current.
Allied has been zero help other than to offer "$600 for two replacements" of my 4k 3 year old investment. This is a seldom used neighborhood cart, not a hill jumping 30mph daily run beast. I'm just at a loss, could all 4 of these be bad this quickly? If so what would you gurus replace them with in 2024?

Dont toss them someone who wants to invest the small amount of money to check the cells inside and replace the bms may want to buy them. As mentioned the bms is th weak point in these batteries, Another strong advantage for a person assembling their own pack if they can.

BTW never heard of a 500a solenoid...

[ChrisFaze]

Originally Posted by augiedoggy

Dont toss them someone who wants to invest the small amount of money to check the cells inside and replace the bms may want to buy them. As mentioned the bms is th weak point in these batteries, Another strong advantage for a person assembling their own pack if they can.

BTW never heard of a 500a solenoid...

Sorry if i misworded, this is what I have.
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
What kills me about this is that these batteries are "warrantied" for 8 years. One of the reasons I purchased them. What the don't tell you unless you read the very very fine print is that you must register the "warranty" within 30 days of purchase for it to be active otherwise they're warrantied zehro. It's shady at best.

[jasonojordan]

Originally Posted by ChrisFaze

Sorry if i misworded, this is what I have.
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
What kills me about this is that these batteries are "warrantied" for 8 years. One of the reasons I purchased them. What the don't tell you unless you read the very very fine print is that you must register the "warranty" within 30 days of purchase for it to be active otherwise they're warrantied zehro. It's shady at best.

They were never going to be warrantied for 8 years regardless of what you did. A very high percentage of the companies on amazon selling these batteries don't even exist for a year let alone 8.

[Volt_Ampere]

With these drop in batteries, I would not consider the warrantee to be worth the paper it's not printed on. Maybe if it arrives DOA or fails immediately but in a few years, these companies won't be around. We're not dealing with Apple or Microsoft here.
If you are at all electrically and mechanically inclined, I would disassemble one of the failing batteries and check out the individual cells. There is a good chance that they are good and you could build a battery out of them and add a new BMS. Sadly, this is beyond the capabilities of many customers out there.

[ChrisFaze]

Thanks guys, it seems my next step may be to crack the batteries, take a look at the BMS and see if I can find replacements online. Allied seems to be a pretty reputable and relatively big outlet, really disappointed in their customer service for what is priced as a premium solution.

[jasonojordan]

Originally Posted by ChrisFaze

Thanks guys, it seems my next step may be to crack the batteries, take a look at the BMS and see if I can find replacements online. Allied seems to be a pretty reputable and relatively big outlet, really disappointed in their customer service for what is priced as a premium solution.

Are these sold by allied? If so then there is a chance warranty is there. I guess I assumed you got them from some random seller on Amazon.

[ChrisFaze]

Originally Posted by jasonojordan

Are these sold by allied? If so then there is a chance warranty is there. I guess I assumed you got them from some random seller on Amazon.

Yes sir, and I've already contacted them. Their "solution" was pay us $600 for two "warranty" replacement newest generation equivalent batteries, which, of course, have hardier Bluetooth enabled BMS boards. Really makes me feel like I'm getting the raw end of the stick here after spending a LOT of money. Plus I know for a fact two batteries don't have enough surge power to push the cart. You hammer down with two, she dies then you tow/run toggle to reset the controller.

[jasonojordan]

Originally Posted by ChrisFaze

Yes sir, and I've already contacted them. Their "solution" was pay us $600 for two "warranty" replacement newest generation equivalent batteries, which, of course, have hardier Bluetooth enabled BMS boards. Really makes me feel like I'm getting the raw end of the stick here after spending a LOT of money. Plus I know for a fact two batteries don't have enough surge power to push the cart. You hammer down with two, she dies then you tow/run toggle to reset the controller.

Yea sounds like one of them hindsight is 20/20 situations. Unfortunately you are not the 1st person who has been deceived into going this route and instead of having to buy once cry once you end up buying twice!