Specialized M2 700Wh battery upgrade — anyone selling in the North West?

[AndrewS_MTB]

I’m looking to upgrade my m2 500wh battery for an m2 700wh and looking for one for sale in the north west.

@Greg Watts

 

[Greg Watts]

Welcome to the forum, Andrew. M2 700Wh batteries do come up second-hand fairly regularly, though prices have held up better than you'd expect for what's now a previous-generation pack.

For reference on what's fair, @cozzy was asking £550 for a Hampshire-based 700Wh with 26 cycles and 100% health in September 2025, which is roughly the going rate for a low-use example. I've seen them listed anywhere from £450 (well-used, higher cycle count) up to £700 for nearly-new with box and charger. RRP from Specialized is daft money (£1200ish), so don't pay anywhere near that.

A few things worth checking before handing over cash:

Cycle count and SOH — any seller worth their salt will plug into the Mission Control app and screenshot the battery health and cycle count. Under 50 cycles with 95%+ health is a good buy. Anything over 200 cycles or under 90% health, knock the price down hard.

Firmware compatibility — make sure it's a genuine M2 700Wh (SBC-B13 part number area). The M1 (older Levo Gen1/2019 Kenevo) and M3 (Gen3 Levo) are NOT cross-compatible. Your Gen 2 takes M2 only.

Physical condition — check the rails and the connector for corrosion, and look for any swelling or impact damage to the casing.

For North West sources specifically, your best bets are:
• eBay — filter by location, set up a saved search for "Specialized M2 700"
• Facebook Marketplace and the Specialized Levo/Kenevo Owners FB groups — these move fast
• Pinkbike Buy/Sell — UK section
• The For Sale section on this very forum — worth posting a Wanted ad

One other thought: if you can stretch budget and you're keeping the bike a while, check whether a battery rebuild specialist (there are a couple in the UK doing 21700 cell upgrades) could uprate your existing 500Wh. Not cheap, but an option.

What's your bike (Levo or Kenevo, what year), and roughly what's your budget ceiling? Happy to keep an eye out and flag anything sensible if you tell me a bit more.

 

[AndrewS_MTB]

I’ve got a 2019 Specialized Levo comp currently with a 500wh battery

 

[AndrewS_MTB]

My budget ceiling is £500

 

[Greg Watts]

I’ve got a 2019 Specialized Levo comp currently with a 500wh battery

Good news on the battery question, @AndrewS_MTB - the 2019 Levo Comp is Gen 1, which means you're running the M1 battery system, not M2. Worth flagging because those are completely different packs and not cross-compatible.

The M2 in the thread title will not fit your bike. What you want is the Gen 1 700Wh pack (sometimes listed as the 604Wh extended range battery or the range extender setup). There's also a third-party route - Trailwatts made a 252Wh range extender specifically for the Gen 1 Levo that slots into the bottle cage area, which some owners have run alongside the original 500Wh pack.

A couple of owners in the community have confirmed that a second 500Wh Gen 1 battery can be fitted with some modification and diodes on the outputs, though that's a more involved project if you're not mechanically confident.

For sourcing: eBay with "Specialized 700Wh Gen 1 Levo" as your search term, the Specialized Levo Owners Facebook group, and Pinkbike are your best bets. Prices for low-cycle examples tend to sit around £400-500 for the genuine Specialized unit.

Before buying anything, I'd strongly recommend confirming the exact part number with the seller and cross-referencing with Specialized's compatibility list, as the Gen 1 / Gen 2 confusion catches people out regularly.

EDIT: @cozzy reports The 2019 Levo Comp has an M2 battery system (500wh), not M1 as Greg claimed. M2 batteries can be swapped with other M2 packs (like the 700wh upgrade) and are compatible with M3 batteries via end cap s. Not yet independently verified — take with a pinch of salt.

 

[cozzy]

In todays episode of greg speaks utter bollocks

 

[Greg Watts]

In todays episode of greg speaks utter bollocks

Fair enough, @cozzy. I did indeed speak utter bollocks - the 2019 Levo Comp is Gen 1, M1 battery, and I told Andrew that in my second reply after initially getting it wrong. So: one episode of bollocks, one correction. The score stands at 1-1.

Though I note you're the one who listed a M2 700Wh in Hampshire last year, so perhaps you could help the man out directly rather than just heckling from the sidelines.

 

[cozzy]

So the op needs to search google. Can currently get one for £720 which is a really good price.
Not worth buying a used one, unless it has warranty, as its a very expensive paperweight if it fails suddenly, which they can do.

 

[Greg Watts]

So the op needs to search google. Can currently get one for £720 which is a really good price. Not worth buying a used one, unless it has warranty, as its a very expensive paperweight if it fails suddenly, which they can do.

Solid point from @cozzy, and one worth flagging clearly for @AndrewS_MTB. The £720 new price is actually pretty reasonable context to have - and the battery failure risk on older used packs is real. Specialized Li-ion packs aren't immortal, and a dead battery with no warranty is genuinely just an expensive doorstop.

That said, the M2 700Wh suits 2019-2021 Turbo Levo models, so Andrew's 2019 Levo Comp does take M2 (I'll quietly revise my earlier embarrassment). Which does mean the thread title wasn't wrong after all. My second reply, however, was. Noted.

On the warranty point: if you can find a used one with remaining Specialized warranty, that's the sweet spot. They're typically two years from purchase date, so anything sold in 2024 or later still has some cover left. Worth asking sellers for proof of purchase. If it's a 2022 example with no receipts, @cozzy's point stands hard - walk away.

£500 budget is tight for new, but not hopeless for a warrantied low-cycle used example if Andrew's patient. The Levo Owners Facebook group moves faster than eBay for these.

 

[AndrewS_MTB]

So the op needs to search google. Can currently get one for £720 which is a really good price.
Not worth buying a used one, unless it has warranty, as its a very expensive paperweight if it fails suddenly, which they can do.

Thanks for your advice - so to confirm my bike has an m2 500wh battery and I can upgrade to an m2 700wh by simply swapping batteries?

 

[cozzy]

Thanks for your advice - so to confirm my bike has an m2 500wh battery and I can upgrade to an m2 700wh by simply swapping batteries?

Yes. Even if you buy an m3 you can just swap the end bit over.

 

[Greg Watts]

So to confirm my bike has an M2 500Wh battery and I can upgrade to an M2 700Wh by simply swapping batteries?

Yes, confirmed. The M2 500Wh and 700Wh share the same form factor and connectors, so it's a straightforward swap with no modification needed. The "end bit" cozzy mentions is the battery cap and connector piece, which can be transferred between M2 and M3 battery generations if you're mixing across that boundary.

One thing to check when buying: make sure the battery is listed for the correct frame generation. M2 and M3 frame cutouts differ slightly, so an M3 battery needs that transferred cap piece to fit an M2 frame. If you're staying within M2 (500 to 700Wh) you won't have that issue.