Fuel EXe Trek fuel exe range extender battery availability?

Mteam

E*POWAH Elite
Aug 3, 2020
1,789
1,726
gone
Went for first ride with the range extender today, just to check its all working fine. All was good, I noticed that when the range extender runs out of juice the motor stops assisting for maybe 3 seconds while the main battery comes online, then normal service is resumed.
 

Psythepie

Member
Nov 28, 2022
33
38
UK
Went for first ride with the range extender today, just to check its all working fine. All was good, I noticed that when the range extender runs out of juice the motor stops assisting for maybe 3 seconds while the main battery comes online, then normal service is resumed.
I found the same, unfortunately it happened on a turbo setting steep climb!
 

DethWshBkr

New Member
Jun 20, 2023
10
1
PA
I just ordered a Fuel ExE, and asked about a range extender. I was told it would be mid September. Seems like it's a continual pushback....
 

Mteam

E*POWAH Elite
Aug 3, 2020
1,789
1,726
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I just ordered a Fuel ExE, and asked about a range extender. I was told it would be mid September. Seems like it's a continual pushback....
I think it varies from shop to shop,for example blazing bikes have stock right now

 

Cell4soul

E*POWAH Master
Jul 11, 2022
446
1,254
Mesa, AZ
Did my first ride with 2 full batteries today. I put in 35 miles and 4,000’. The second battery still had 33%. The bike should be good for 40 miles and 5,000’. My only complaint about the Fuel EXe was the range. I no longer have that complaint. As far as assist levels on this ride, I used the following:

Eco: 0%
Trail: 15%
Boost: 85%

I carried the battery in the Evoc pack. I thought for sure the weight would be an issue. It was not an issue; I didn’t notice the weight at all. The pack does get lighter as you go, every liter of water drank is 2.2 pounds. Personally, the range extender is a waste of money given the whole battery is only $150 more and it has more than double the range of the extender. The battery only took a few minutes to swap on the trail.

I am really stoked on this setup. The bike is dead silent and so natural to pedal. The EXe is the best lightweight EMTB on the market. It also appears to have the most reliable motor. 1,000 miles on mine with zero issues.
 
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BenQ77

Member
Aug 27, 2022
13
4
Germany
Hello, do I need additional screws for the retaining strap (for the range extender) or are they included?
If not, what screws do I need?
 

Psythepie

Member
Nov 28, 2022
33
38
UK
Unfortunately you will require some screws as bizarrely they aren't included with the strap. I'm afraid I can't tell what size as my LBS had a rummage in the back of the workshop & found some that fitted.
 

Mteam

E*POWAH Elite
Aug 3, 2020
1,789
1,726
gone
Hello, do I need additional screws for the retaining strap (for the range extender) or are they included?
If not, what screws do I need?
people on the fuel exe facebook group reckon they are m4 x 6mm screws, apparently the same as what are used in lock on grips - although I guess they could vary depending on the type of lock on grip.

I cant confirm that as I just found some that fitted in my parts drawer
 

JP-NZ

E*POWAH Elite
Feb 17, 2022
1,034
779
Christchurch - New Zealand
Personally, the range extender is a waste of money given the whole battery is only $150 more and it has more than double the range of the extender. The battery only took a few minutes to swap on the trail.
I think the RE does have a place, over here in NZ where we have two islands, if I want to do some MTB riding in the north the best way would be to take the bike and fly. You can fly with an RE in carry on (160wh) but you can't fly with the normal battery. Thats about the only positive I see to it apart from being able to carry on the bike.

Good to hear the 2nd battery works well though! What Evoc bag are you using?
 

farang

New Member
Jul 7, 2023
11
7
USA
I'm thinking of purchasing a full size battery instead of the range extender for the following reasons:

+ better value per Wh
+ 3-5 minutes to change out on trail or at the car. No special tools.
+ Longer range vs extender
+ Maintain stealthiness (the range extender, mainly the cable, is a dead give away)
+ 5.25gm per Wh (4.2lb)
+ still have use of water bottle cage
- must carry in a backpack

For those with a full-size spare battery, 2 questions:

1. Is the battery (body & connector) waterproof rated? If I carry it in the EVOC backpack and get rained on, will it be an issue? We sometimes have flash thunderstorms that roll through.
2. If the connector is not waterproof, I was thinking of using a snug rubber end cap to cover it but I'm also concerned about the battery's body being susceptible to water.
 
Last edited:

Mteam

E*POWAH Elite
Aug 3, 2020
1,789
1,726
gone
I'm thinking of purchasing a full size battery instead of the range extender for the following reasons:

+ better value per Wh
+ 3-5 minutes to change out on trail or at the car. No special tools.
+ Longer range vs extender
+ Maintain stealthiness (the range extender, mainly the cable, is a dead give away)
+ 5.25gm per Wh (4.2lb)
+ still have use of water bottle cage
- must carry in a backpack

For those with a full-size spare battery, 2 questions:

1. Is the battery (body & connector) waterproof rated? If I carry it in the EVOC backpack and get rained on, will it be an issue? We sometimes have flash thunderstorms that roll through.
2. If the connector is not waterproof, I was thinking of using a snug rubber end cap to cover it but I'm also concerned about the battery's body being susceptible to water.
The battery itself is water resistant,so I wouldn't worry about it . The manual says it's ip67 rated.

Screenshot_20230717-173357.png
 

mctubster

New Member
Jul 18, 2023
10
1
Nelson, NZ
Nice to know l have the extra range but I think I now want more. Working on a new design that uses 5000mah 21700 cells. It looks like I can fit the larger cells into the same same form factor. Maybe 10mm longer and of course 350 grams heavier. 260 Whr will let me run with my full fat buddies for the entire ride (me on max boost of course :)).

Great design job there, love to know how you are going with the external pack, any issues and would you be able to share your STL files for any of your designs?

Cheers
 

BuzzinHornets

Member
Jul 10, 2022
30
48
CA
I ordered an EX-e today from a Trek branded shop and was told they have had the range extenders on back order for nearly a year, the newest date they have is Sept. 4. They have had zero communication as to what the issue is/has been. I’m going to hurry up and wait…
 

RoktMyDog

Member
Feb 23, 2021
37
188
USA
Lame AF trek gives no word on what's going on with the extenders UNavailability. Compared to my 2020 Levo SL, my Exe has easily 30% less range, making it the low end of ranges for the lightweight ebike class AND making the 2nd Gen levo SL look better and better.
 

Swingset

Active member
Sep 9, 2022
265
300
Southern Cal
Well there used to be a Mitch from Trek that participated in these forums. Roman from TQ pulled out a while ago. Lets see if we can get Mitch to comment on this?
 

Sharkiedog

Member
Sep 23, 2018
5
2
Northern California
A US NorCal datapoint: I received my extender ~2 weeks ago, I believe it was the first received by my LBS.
and yes, the LBS didn’t realize that the M4x6 button head machine screws had to be ordered separately.
 

farang

New Member
Jul 7, 2023
11
7
USA
For those with a full size battery (not range extender), I've found the perfect carrying case for it; even better than the battery case included with EVOC e-ride packs.

It's originally designed to carry 4 beer cans, which equate to the length of the TQ battery. It has waterproof zippers, insulated/padded, and has lots of configurable straps on every side. It's also very well made.

I think it's a pretty good price for what it is.


20230731_224534.jpg
 

Swingset

Active member
Sep 9, 2022
265
300
Southern Cal
Interesting turn of fortune yesterday. The dealer I bought the bike from 10 months ago called to say the range extender I ordered is in. I never ordered one from them but did from another dealer- same owner though. Told them to have it fully charged so that I can bring the bike in and plug it in to see if it throws and error code while I am there. Fingers crossed.

It is amazing to me that the shop guy is going over the order for over $700 and telling be that 4- 4mm screws are required and need to be ordered at extra cost on a product that is almost a year overdue. Poor form. I went out in the garage and found some that are better quality anyway.

Will advise on how this turns out.
 

Cell4soul

E*POWAH Master
Jul 11, 2022
446
1,254
Mesa, AZ
Interesting turn of fortune yesterday. The dealer I bought the bike from 10 months ago called to say the range extender I ordered is in. I never ordered one from them but did from another dealer- same owner though. Told them to have it fully charged so that I can bring the bike in and plug it in to see if it throws and error code while I am there. Fingers crossed.

It is amazing to me that the shop guy is going over the order for over $700 and telling be that 4- 4mm screws are required and need to be ordered at extra cost on a product that is almost a year overdue. Poor form. I went out in the garage and found some that are better quality anyway.

Will advise on how this turns out.

They will likely need to do a firmware update with both the battery and extender on the bike. They had to do that when I purchased my second battery.
 

Swingset

Active member
Sep 9, 2022
265
300
Southern Cal
Picked it up yesterday. Bike threw an error code and a quick five minute firmware update cured that. Did a quick blast up
my home trail in Trail the whole time. 925 feet of climbing and 9 miles total (up and back) and went from 150% to 112% so never rinsed the RE. I was pondering the change over though. On the main battery it throttles the power back when you get below a certain percentage. On the RE it theoretically just goes to zero and does the change over to the main with no drop. Given that the main is 360W and the RE is 160w it seems like there are 20 extra watts protecting the RE from complete discharge that are not available. Just an observation.

This certainly opens up some rides where I was just on the wrong side of making it back.
 

Mteam

E*POWAH Elite
Aug 3, 2020
1,789
1,726
gone
Picked it up yesterday. Bike threw an error code and a quick five minute firmware update cured that. Did a quick blast up
my home trail in Trail the whole time. 925 feet of climbing and 9 miles total (up and back) and went from 150% to 112% so never rinsed the RE. I was pondering the change over though. On the main battery it throttles the power back when you get below a certain percentage. On the RE it theoretically just goes to zero and does the change over to the main with no drop. Given that the main is 360W and the RE is 160w it seems like there are 20 extra watts protecting the RE from complete discharge that are not available. Just an observation.

This certainly opens up some rides where I was just on the wrong side of making it back.
I managed to get 2800 feet of climbing out of just the range extender the other day, I wanted to see how far it could go if I was really trying to make it last. This was with eco mode set to 50% assist with a max of 60watts, and only switching the motor on for any uphills. It wasn't much fun, but was still faster than my normal bike.

I don't think the range extender holds 20w in reserve to prevent damage to the battery, I think it just lets you run it down to zero percent (which is not the same as a fully flat battery) without limiting the power draw and be damned if that degrades the cells quicker.
 

Swingset

Active member
Sep 9, 2022
265
300
Southern Cal
For years I was wondering why the auto makers just didn't have a series of $$$$ LED's on the dash for the check engine lights. Oil change gets a $, blown tranny $$$$.

Same scheme for the battery indication the EXe?
 

socal_rider

Member
Jun 6, 2021
79
89
Temecula, CA
I cancelled my range extender order today. LBS said they’ve been pushed again to January. I bought a base carbon Levo which came with a 500 Wh and 700 Wh battery. If that’s not enough for me I’ll just buy a moto. :)
 

Mteam

E*POWAH Elite
Aug 3, 2020
1,789
1,726
gone
Just a quick note to say that I took my fuel exe on a plane from manchester, uk to southern spain over the weekend, I left the main battery at home, and just took the range extender battery in my hand luggage.

The bike with battery removed went through the oversized luggage scanner with no issues, and onto the plane (flew with ryanair)

When I got to the security check at manchester I emptied out my rucksack of all the usual electronics, drone, steamdeck etc including the 160wh range extender battery, so it could all go through the scanners. My tray with the range extender battery got diverted off for a more detailed investigation, the security bloke said the scanner had flagged up the battery as suspicious , he asked me what it was, I told him it was a battery for an ebike, he then gave it all back to me and I was on my way. On the way back from spain I didnt get stopped at all.

The RE worked well, I had to turn the assistance right down to get the range I needed on some of the more pedally days, but it did exactly as I expected. The trip was mostly van uplifted with a small amount of pedalling, the biggest day was about 3000 vertical feet of pedalling (10000 feet descent), the range extender managed this with 6% left, I only turned the motor on for the uphills, on the flats and downs it was off. Most days were 1500-2000 feet of pedalling, with 10000 feet descent.
 

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