Switching between 500wh and 625wh battery.

[MTB565]

Might pick a 2020 Trek Rail 5 with the 500wh battery. If a want to buy a second 625wh battery is possible with spacers make the switch as easy from 500 to 625 during rides as with battery of the same wh?

 

[GrandesRoues]

I think it's the 500Wah version that comes with a spacer to get to the correct lenght.
I don't see why they would be a problem swaping during rides.

 

[MTB565]

I think it's the 500Wah version that comes with a spacer to get to the correct lenght.
I don't see why they would be a problem swaping during rides.

Nice! I thought the adjustment were done inside the battery compartment to accomodate for the different lengths.

 

[GrandesRoues]

You can see how it's done in the "rail part diagram pdf" on top of this forum.

 

[N9VNS]

Can anyone confirm that you can put a 625wh battery in a trek rail that came with a 500wh battery?

 

[Seraye]

I know this is a late response, but for the record - yes, it is possible - I have a Rail 9.7 With the 625 And a 2020 Powerfly 4 with 500 watt - and they are interchangeable - no need to change spacers - they are set up ready to swap.

 

[LenM]

Very much appreciated, I found the first thread and not the second one from June

 

[Peaky Rider]

It wouldn't be just a spare battery you would be carrying in your back-pack about but also the cover plate and associated fixings.
On my Rail 7 that all weighs 4.1 kilos, quite a sizeable and heavy lump to carry on your back.

 

[Stihldog]

I did it. It’s gross. But it works.

I’ve switched the 500w (PF hardtail) to the 625w Rail, and vica-versa with no problem or adjustment.

 

[TrailMix]

@Stihldog when you made the switch from 500w to 625w, does that affect the display at all, especially in regards to how it reads charge levels and such, or does it automatically understand you've installed a larger battery?

 

[Stihldog]

@Stihldog when you made the switch from 500w to 625w, does that affect the display at all, especially in regards to how it reads charge levels and such, or does it automatically understand you've installed a larger battery?

The switch didn’t affect the display (Purion or Kiox), but I didn’t notice if/how the charge levels displays were affected…or if the computer sensed a change in battery size or charge capacity.
I only swapped the batteries around once to see how they would react to the change. The battery size for the Rail (625w) or the PowerFly (500w) is just fine based on my rides (Mountian or Flats).…but it’s good to know that I can swap things around.
I’m not sure about the new 750w battery. (Longer battery compartment). I think the power connections are different.

 

[Seraye]

The display does indeed know if you have a 625 or 500 watt battery.

 

[Stihldog]

The display does indeed know if you have a 625 or 500 watt battery.

Now that I think of it…the display/computer probably does. But I never noticed any display or size indication on either the Kiox or Purion.

 

[BigMark]

Did a mega ride with a 625 and 500 watt battery today...

 

[budgiesmith]

I know this is a late response, but for the record - yes, it is possible - I have a Rail 9.7 With the 625 And a 2020 Powerfly 4 with 500 watt - and they are interchangeable - no need to change spacers - they are set up ready to swap.

I read that there are internal differences between the powerfly 4 gen 3 and gen 4 batteries, the older model being 'series 2' and the newer ones 'intelligent'. Is this true? And does it mean I must find a series 2 battery for my 2022 powerfly 4 gen 3?

 

[Seraye]

I read that there are internal differences between the powerfly 4 gen 3 and gen 4 batteries, the older model being 'series 2' and the newer ones 'intelligent'. Is this true? And does it mean I must find a series 2 battery for my 2022 powerfly 4 gen 3?

I am not familiar with the latest generations of powerfly, but the latest gen will be smart system and those batteries will not be compatible with the series 2 batteries. Your Local Trek store should be able to clarify this for you. I got myself a new alloy Rail 7 gen 3 and it is smart system.

 

[nickf]

I read that there are internal differences between the powerfly 4 gen 3 and gen 4 batteries, the older model being 'series 2' and the newer ones 'intelligent'. Is this true? And does it mean I must find a series 2 battery for my 2022 powerfly 4 gen 3?

You can tell the difference between the Series 2 batteries and the Smart system batteries by the shape of their connector port. The old Series 2 are oval in shape while the newer Smart system are circular. Obviously the charging ports on the bike also have the same corresponding shape. This will tell you what type of battery you need for your bike.

 

[irie]

Saw this: