Last updated on April 13th, 2026 at 01:12 am
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Yes, you can change a Traxxas from LiPo to NiMH, as long as the ESC is set up for the battery you’re running.
In practice, that usually means checking the low-voltage cutoff and making sure the pack you plug in matches the truck or car’s electronics. LiPo and NiMH behave differently, so the same settings do not work the same way for both. A LiPo needs protection from over-discharge, while a NiMH pack is happier when the ESC is not cutting out too early.
The swap itself is pretty simple once you know where the battery mode is in the Traxxas setup. The real trick is avoiding the common mistakes that leave performance on the table or shorten battery life.
What you need before you start
Before changing anything, make sure you have the right battery, charger, and the vehicle manual for your exact Traxxas model. A pack that fits the tray but does not match the electronics is where most trouble starts.
- A Traxxas RC car with an ESC that lets you choose between LiPo and NiMH cutoff settings.
- The battery you want to use, whether that is NiMH or LiPo.
- A charger matched to the pack type, which is covered in our RC battery basics.
- Basic battery care habits, including safe charging and storage.
- A charger that can handle the chemistry you are using; our RC charger basics page is a good place to double-check that part.
Also inspect the pack before use. Do not charge or run a puffy, swollen, or damaged battery. If the case is bad or the cells have been damaged, stop using it and dispose of it properly.
Step-by-step process
1. Check the ESC battery mode
Traxxas ESC settings matter because the cutoff voltage changes the way the car reads the pack. The source material notes two important examples:
| ESC setting | What it does | What to watch for |
|---|---|---|
| LiPo Low | An 8-cell NiMH pack may be detected as a 3S LiPo and cut off at 8.55V. | You may not get the full capacity out of the NiMH pack. |
| NiMH High | A 3S LiPo may cut off at 8.1V, which can be too low for safe LiPo use. | This can risk over-discharging the LiPo. |
If your goal is to run both battery types with one setup, NiMH High is the compromise mentioned in the source material. It can work if you fully charge the batteries before use and avoid running all the way into cutoff, but it is still a compromise, not a perfect match.
2. Choose the battery you are actually using
Do not assume the car will automatically protect every pack in every mode. NiMH and LiPo are different chemistries, so the ESC and charger need to match what is in the car. The safest habit is to set the car for the pack type you are running that day.
If you switch between pack types often, keep the settings simple and make a habit of checking the battery before every run. That is a lot easier than trying to remember what was installed last time.
3. Charge the pack correctly
NiMH batteries are easier to manage than LiPos, but they still need the right charger. NiMH packs are typically charged fully before storage unless the manufacturer says otherwise, while LiPos need balanced charging and storage at about 50% to 70% charge, or about 3.85V to 3.9V per cell.
LiPo packs should be charged and stored in a LiPo safe bag or other fireproof container. NiMH packs are less demanding, but you still want clean connectors, the correct charger, and a battery that is in good condition.
4. Run the car and stop before the cutoff becomes a habit
Once the battery is installed, run the car normally and watch how it behaves near the end of the pack. A healthy NiMH pack should not feel like it is dropping off too early, and a LiPo should not be pushed down into a risky low-voltage range.
Try not to run packs into cutoff as a routine. Fully charged batteries, timely run time, and a little margin left at the end will usually treat both chemistries better.
5. Recheck the result after the first run
After the first run, look at the pack and the car. If the battery is hot, the run is much shorter than expected, or the ESC shuts down too early, the cutoff setting may not be right for that pack.
If everything feels normal and the car runs through the pack without weird shutdowns, the change is likely working the way you want.
How to tell if the result is correct
A good setup is easy to spot once you know what to look for. The car should run smoothly, the battery should not come out puffed or overheated, and the ESC should not cut power far sooner than expected.
- NiMH runtime should feel reasonable for the pack size.
- LiPo packs should not be run down until the car is barely moving.
- The battery should not be hot to the touch after a normal run.
- The vehicle should not be shutting off at a voltage that leaves either pack poorly treated.
If you are seeing early cutoff on a NiMH pack, the ESC may be treating it too much like a LiPo. If a LiPo is being used on a NiMH-style setting, that is the more serious problem because the pack may be discharged too far.
Most common mistakes
Most problems come from mixing battery habits instead of matching them to the chemistry. LiPos and NiMH packs can both power a Traxxas car, but they do not want the same care routine.
- Using the wrong ESC cutoff for the pack type.
- Charging a LiPo like a NiMH pack.
- Storing a LiPo fully charged for long periods.
- Trying to keep using a damaged, puffy, or bad battery.
- Skipping the manual and guessing at the settings.
Good battery habits matter just as much as the mode setting. If you want a broader refresher on pack handling, our battery setup and maintenance guide covers the basics of treating RC packs the right way.
Troubleshooting after the main steps
The car cuts off too early
If a NiMH pack cuts off too soon, the ESC may be set too conservatively for that battery. Recheck the battery mode and make sure the pack is actually charged fully before the run.
The LiPo seems to shut down too late
If you are using a LiPo on a NiMH-friendly setting, stop right away and correct it. That setting can let the pack go too low, which is where LiPo safety starts to get much more serious.
The battery gets hot or looks swollen
Stop using the pack immediately. Do not charge, discharge, store, or run a puffy or damaged LiPo. For NiMH, heat is still a warning sign that something is not right with the battery or the setup.
The charger seems to be acting up
Double-check that the charger matches the pack chemistry and that the leads and connectors are making solid contact. If you want help with the charger side of things, our charger setup and maintenance notes are a useful reference.
NiMH vs LiPo for a Traxxas car
NiMH is easier to live with. It is usually the friendlier choice if you want simple charging and less storage worry. It also has a rated cell voltage of 1.2V.
LiPo is lighter and usually gives better power delivery. It stores more energy for its size, has a rated cell voltage of 3.0V when discharging, and needs balanced charging plus more careful storage at about 50% to 70% charge.
That is why many hobbyists move to LiPo for more power, but NiMH still makes sense if you want a simpler pack to manage.
Frequently asked questions
Can I use the same ESC setting for both NiMH and LiPo?
You can, but it is a compromise. The source material points out that NiMH High can be used for both if you understand the limits, keep batteries fully charged, and avoid letting the car hit cutoff.
Will I lose runtime with NiMH?
Usually yes, especially compared with a LiPo of the same capacity and weight. LiPos generally hold voltage better through the run and tend to deliver stronger performance.
Do NiMH batteries need balance charging?
No. Balance charging is a LiPo requirement. NiMH packs are much simpler to charge.
What is the safest storage habit for LiPo batteries?
Store them at about 50% to 70% charge, ideally in a LiPo safe bag or fireproof container.
Can a bad battery be reused if it still charges?
No. If a battery is puffed, swollen, damaged, or otherwise suspect, stop using it and dispose of it properly.
Switching a Traxxas car from LiPo to NiMH is mostly about using the right ESC mode and respecting the difference between the two pack types. Once the cutoff, charger, and storage habits are matched to the battery, the swap is simple enough to manage without drama.