Help needed! 24v 7ah battery question

54 posts / 0 new
Last post
hank
hank's picture
Offline
Last seen: 2 weeks 1 day ago
Joined: 09/04/2011 - 21:52
Posts: 9567
Location: Berkeley, California

Have you looked into li-poly vehicle batteries?

There are a a lot of cautionary reviews on YouTube, apparently it’s possible to make them quite profitable by skipping important steps in building them.
(I looked around a while back for some home fire/earthquake/emergency home power storage batteries to upgrade from my collection of old 12v car batteries, but didn’t find something that sounded reliable.

But there might be something out there. They’re much lighter weight than lead-acid batteries, too.

ml504
Offline
Last seen: 7 months 1 week ago
Joined: 10/04/2020 - 15:10
Posts: 2
Location: Louisiana
PeanutChopper wrote:
Well I contacted Huffy on 9/23 and they sent me another controller module. Unfortunately it worked for maybe a week and went to go use it today and it only goes in reverse again. I contacted Huffy again so we will see. I’ve only had it since June. Has anyone else had success with the YK31 controller module or any other fix? I should’ve got the warranty to just return it. It’s a shame because I haven’t seen any other ride-on for younger kids that’s reliable that goes as fast or built as strong as the Torex UTV

That’s what keeps happening to ours. The new controller will work for a few weeks and then it dies. I’m hoping this controller is promising.

Terryjr
Offline
Last seen: 5 months 1 week ago
Joined: 09/09/2020 - 11:17
Posts: 6
Location: Pittsburgh

The battery doesn’t seem to be a problem, it last long enough. If I needed more range I would swap in 3 nissan leaf batteries cells for 24v. With lithium batteries you need to be careful draining them. Something like a buzzer that warns you at 10% to stop and charge.

Here my 4 yr old on his with yk31 controller and softer springs

Exotruck

Terryjr
Offline
Last seen: 5 months 1 week ago
Joined: 09/09/2020 - 11:17
Posts: 6
Location: Pittsburgh

Sorry I’m too lazy to write it up but I filmed it.

Exotruck

dogfish54
Offline
Last seen: 6 months 2 weeks ago
Joined: 10/27/2020 - 14:25
Posts: 2

Thank you as well for posting the springs. I ordered some shocks from Amazon but were over $130, they are probably still too heavy, and won’t get here for a month. I ordered these springs as well, thank you.

dogfish54
Offline
Last seen: 6 months 2 weeks ago
Joined: 10/27/2020 - 14:25
Posts: 2

Wouldn’t it seem logical there is some other issue causing it to die? Maybe the ridiculously hard suspension (half-joking). Ours has been fine too but a) I live in a cold climate b) it’s not used for more than 10 minutes at a time.

Not sure if any of those factors are saving me, but had good luck so far.

Terryjr
Offline
Last seen: 5 months 1 week ago
Joined: 09/09/2020 - 11:17
Posts: 6
Location: Pittsburgh

Mine died after 4 kids hung on it. It’s abused but with my kids and their cousins all playing together, it’s inevitable.

Ps I have a brand new unused controller huffy sent me through warranty. It took almost 3 months to get it. I’ll send it to someone that needs it for shipping cost

Exotruck

PeanutChopper
Offline
Last seen: 6 months 1 week ago
Joined: 09/12/2020 - 20:48
Posts: 3

So a little update…I had to contact Huffy again about my second controller module issue. I got a great rep who sent me another controller, second battery as well as a bridge connector to hook up both batteries. I was very appreciative that they did that but they did tell me they cannot keep replacing the controller since I’ve had two others go out. Time will tell but I think the issue here is the controller and I honestly don’t know if there will be a fix. Having two batteries will be great for a longer drive time but I fear that will just put more stress on the controller. I haven’t had any other issues with the UTV and my son absolutely loves it so fingers crossed!

SKelt83
Offline
Last seen: 6 months 13 hours ago
Joined: 11/12/2020 - 12:31
Posts: 1

This is my first post in this forum. I have a chance to get a display of the Torex UTV. Huffy has recommended I make this a custom project. With a YK31 controller, what other drivetrain components and batteries are recommended? Apparently the displays are shipped with no wiring and no drive components so this is my chance to make a much improved Torex UTV. TIA

The Enginerd

DMan
Offline
Last seen: 5 months 1 week ago
Joined: 12/04/2020 - 11:58
Posts: 1
Location: Minnesota

https://www.amazon.com/LiFePO4-Battery-Miady-Rechargeable-Maintenance-Fr...

12V 16Ah Deep Cycle LiFePO4 Battery, 2000 Cycles Miady LFP16AH Rechargeable Battery.

Would 2 of these (thinking one in each compartment since they are slightly bigger) work far better than the factory 7ah batteries. It is true that 7ah to 15ah is just be longer-lasting power? I should not hurt anything with these? At $50 apiece, it seems two of these LiFePO4 Batteries make more sense than trying 4 cheaper batteries.

Looking for advice from the electrical specialist that has been on this string. Thanks!

Daron

jacob_26
Offline
Last seen: 3 months 3 weeks ago
Joined: 01/13/2021 - 18:29
Posts: 1
Location: Florida

I’m no “electrical specialist”, but I bit the bullet to try two of the lifePo4 12v 18ah from Dakota lithium. These are the biggest batteries that will fit in the 2 slots allotted on the Torex. I also bought the 24v charger since the SLA charger is not compatible with LifePo4.

While this is an expensive upgrade, I found these batteries to have good reviews and a quality built in BMS that won’t allow for overcharging or over-discharging. They are also supposed to be safer than Lithium Ion. LifePo4 do not catch fire according to what I have read.

The only wiring I had to do was put 2 connectors on a 14awg wire to connect the batteries in series for 24v. Then, I removed casing from OEM battery and used the existing wiring harness/fuse for the LifePo4’s. This was a direct swap with no parts needed. However, I use the gator clips on the Dakota 24v charger by clipping them on the opposite battery poles that were used for the existing harness.

So far, so good. There is no comparison to the run time from the SLA battery that came with the machine. The top speed does not degrade as the battery loses power. I don’t know exactly how long they will go, but it has been driven at least 1 hour of constant run time today and is still checking in at 26.1V.

I’ve only had the Dakotas in for a few hours, so I’ll have to report back once we have a month or 2 on them and give an update.

Hope this helps.

Ellistrio
Offline
Last seen: 1 month 2 days ago
Joined: 03/24/2021 - 11:09
Posts: 2

jacob_26 wrote:
I’m no “electrical specialist”, but I bit the bullet to try two of the lifePo4 12v 18ah from Dakota lithium. These are the biggest batteries that will fit in the 2 slots allotted on the Torex. I also bought the 24v charger since the SLA charger is not compatible with LifePo4.

While this is an expensive upgrade, I found these batteries to have good reviews and a quality built in BMS that won’t allow for overcharging or over-discharging. They are also supposed to be safer than Lithium Ion. LifePo4 do not catch fire according to what I have read.

The only wiring I had to do was put 2 connectors on a 14awg wire to connect the batteries in series for 24v. Then, I removed casing from OEM battery and used the existing wiring harness/fuse for the LifePo4’s. This was a direct swap with no parts needed. However, I use the gator clips on the Dakota 24v charger by clipping them on the opposite battery poles that were used for the existing harness.

So far, so good. There is no comparison to the run time from the SLA battery that came with the machine. The top speed does not degrade as the battery loses power. I don’t know exactly how long they will go, but it has been driven at least 1 hour of constant run time today and is still checking in at 26.1V.

I’ve only had the Dakotas in for a few hours, so I’ll have to report back once we have a month or 2 on them and give an update.

Hope this helps.

Do you have any updates on the battery longevity since doing this? We just bought one and are trying to decide if we want to get a spare normal 24volt or do something like this upgrade. I like that power does not diminish as battery loses power. How long do you have to charge after it dies before using again? Any help or feedback would be appreciated.
chops728
Offline
Last seen: 6 hours 28 min ago
Joined: 08/30/2014 - 16:00
Posts: 1165
Location: Swampland,La

If you upgrade from SLA to Li-ion or Lifepo you will double your capacity with the same rated battery —a 7AH SLA battery will only give you around 3 1/12 AH of energy —where as Lithium gives you all 7 AH —- to get a crazy amount of cycles it’s best not to drain all the way down —but with lithium you can —SLA kills the batteries

I have built several battery packs for Razor Scooters and Power wheel vehicles —The difference is substantial

My elderly neighbor has a stock E300S Razor scooter ( 24v ) I did a basic swop to two Lifepo 7AH premade batteries —The scooter gained 2mph and almost doubled the runtime compared to SLA —- The stock charger works fine also — The batteries have BMS internal protection

https://www.ebay.com/itm/TOBattery-12V-7ah

Ellistrio
Offline
Last seen: 1 month 2 days ago
Joined: 03/24/2021 - 11:09
Posts: 2

Ok so I need some help. I ordered 2 different sets of batteries the first i thought one was a dud so i tried a different brand and wired them up. The most recent set was this from Amazon https://www.amazon.com/dp/B08WFQCRZR/ref=cm_sw_r_cp_apa_glc_fabc_EJ2ZWHB...

I tested after it said 100% charged and said 24volts so we hooked it up and it stopped running after about 5 min. I had similar results with the first batteries I ordered. I feel like I’m missing something here any thoughts, ideas, tips, or suggestions would be great. Thanks

Lightbringer
Lightbringer's picture
Offline
Last seen: 1 hour 47 min ago
Joined: 08/30/2016 - 14:12
Posts: 14223
Location: nyc

Max continuous current 10A. You going over that? BMS might cut it off if it heats up or something.

Also, that’s a 12V battery you listed, so no idea where the 24V comes in.

09 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C0

chops728
Offline
Last seen: 6 hours 28 min ago
Joined: 08/30/2014 - 16:00
Posts: 1165
Location: Swampland,La

You do have batteries in Series I presume —-Now check each battery separtate—- a full LifePo battery should read 14-14.6 v per battery (28-29.2 for two in series) —-if you are only charging to 24v total you might be triggering the low voltage cut off in the batteries after the 5 minute run time

Jencarson
Offline
Last seen: 1 week 3 days ago
Joined: 04/26/2021 - 20:25
Posts: 2

Hello, I would really appreciate any idea’s. After 3 month’s our huffy torex utv 24 volt will not break or go in reverse. Going forward and light’s all work great. Please any suggestion are welcomed I can’t find anything online or in manual about this issue.

chops728
Offline
Last seen: 6 hours 28 min ago
Joined: 08/30/2014 - 16:00
Posts: 1165
Location: Swampland,La
Jencarson wrote:
Hello, I would really appreciate any idea’s. After 3 month’s our huffy torex utv 24 volt will not break or go in reverse. Going forward and light’s all work great. Please any suggestion are welcomed I can’t find anything online or in manual about this issue.

From a previous video above —It looks like there’s a switch to make the controller switch to reverse —- I would first try to get to the wires in the back of that switch and touch them together — If it goes in reverse —the switch is bad — If it doesn’t the controller is bad — The brakes appear to be an ongoing issue with these vehicles

Jencarson
Offline
Last seen: 1 week 3 days ago
Joined: 04/26/2021 - 20:25
Posts: 2

Thank you so much for your assistance.

Hank33
Hank33's picture
Offline
Last seen: 4 hours 30 min ago
Joined: 11/22/2019 - 16:00
Posts: 880
Location: Vancouver, B.C.

 

I dunno if you know but there's new tech out now that'll let you connect a second battery with different capacity. You can even hook up a second battery with different voltage and capacity. You don't have to choose externa battery with same voltage and same capacity like the way it use to be. These guys at Falcon might something that you can use for your unit.smile I would email them and ask more questions. They respond to emails quite good. Good luck!smile

 

 

                                                                                             

jags52982
Offline
Last seen: 6 days 3 hours ago
Joined: 05/05/2021 - 18:49
Posts: 2
Location: Texas

jacob_26 wrote:
I’m no “electrical specialist”, but I bit the bullet to try two of the lifePo4 12v 18ah from Dakota lithium. These are the biggest batteries that will fit in the 2 slots allotted on the Torex. I also bought the 24v charger since the SLA charger is not compatible with LifePo4.

While this is an expensive upgrade, I found these batteries to have good reviews and a quality built in BMS that won’t allow for overcharging or over-discharging. They are also supposed to be safer than Lithium Ion. LifePo4 do not catch fire according to what I have read.

The only wiring I had to do was put 2 connectors on a 14awg wire to connect the batteries in series for 24v. Then, I removed casing from OEM battery and used the existing wiring harness/fuse for the LifePo4’s. This was a direct swap with no parts needed. However, I use the gator clips on the Dakota 24v charger by clipping them on the opposite battery poles that were used for the existing harness.

So far, so good. There is no comparison to the run time from the SLA battery that came with the machine. The top speed does not degrade as the battery loses power. I don’t know exactly how long they will go, but it has been driven at least 1 hour of constant run time today and is still checking in at 26.1V.

I’ve only had the Dakotas in for a few hours, so I’ll have to report back once we have a month or 2 on them and give an update.

Hope this helps.


Any update on your setup? I went ahead and ordered a set. I ordered the 12 volt charger at 29 bucks versus the 24 volt at 100 bucks. I’ll just have to charge the batteries separately.
jags52982
Offline
Last seen: 6 days 3 hours ago
Joined: 05/05/2021 - 18:49
Posts: 2
Location: Texas

I just realized you ordered the 18 ah. I ordered two of the 7 ah batteries. Once I receive them I will update on how long the runtime is.

Timnj0979
Offline
Last seen: 3 days 13 hours ago
Joined: 05/09/2021 - 09:36
Posts: 1
Location: United States

My biggest complaint about the torex is the runtime.. the crappy stock 7ah LA battery is terrible.. Just ordered a set of 10ah batteries from Dakota. Let’s see how this thing runs after the upgrade!

Pages