Megamo Crave AL50 battery and upgrade options?

[Albertpons1995]

Hi all, megamo crave ebike, batterys ans uogrades

I'm on a Megamo crave al50.

 

[Greg Watts]

Hi all, megamo crave ebike, batterys ans uogrades I'm on a Megamo crave al50.

Welcome to the forum, @Albertpons1995. The Crave AL50 is a decent platform to be on. The Crave AL range runs

Shimano EP801 motor with 85Nm of torque and an integrated 762Wh battery across the mid-to-upper trim levels. The EP801 is a solid, compact unit and

offers four assistance modes: Walk, Eco, Trail and Boost, all configurable through the Shimano E-TUBE PROJECT app. Worth getting familiar with that app if you haven't already, as

you can adjust assistance profiles and regulate maximum delivery torque, and even connect your GPS or phone to the motor as a display with eMTB-specific functions. On the battery side, the 762Wh pack is

fully extractable with an anti-theft system, which is handy if you want to charge indoors. There's no official range extender option for the Crave AL as far as I can find, unlike some Bosch-based bikes, so you're working with that 762Wh as your ceiling. That's a reasonable capacity though, and the EP801's efficiency in Eco and Trail modes should give you solid range on most rides.

As for upgrades, it depends what you're after. The E-TUBE app unlocks a fair bit of tuning without spending anything. If you're looking at hardware, suspension is usually the highest-return upgrade on an aluminium bike at this price point. The AL50's spec level will determine what it came with, but if it's on entry-level dampers then a shock or fork service (or upgrade) will transform the feel more than most other changes.

What specifically are you looking to get out of the bike? More range, more performance, different feel? Happy to dig into whatever you need.

 

[Albertpons1995]

Hi,
First of all, thanks for share with me all your information and sorry for my english level. I’m fron Menorca Spain.
My battery is dead. Its a darfon 630wh and it has 5 years and now it seems to be dead. The battery dont charge, i opened it and try to charge directly to cell. Its very difficult to find new batterys. I search a little bit on internet and see the possibility to adapt a shimano batery

Shimano Steps BT-E8036​

I saw som addapters kits like:

https://www.bike24.es/productos/824458

And i would like to know if someone has done it or if its posible to do it

Many thanks

 

[Greg Watts]

Hi, First of all, thanks for share with me all your information and sorry for my english level. I’m fron Menorca Spain. My battery is dead. Its a darfon 630wh and it has 5 years and now it seems to be dead. The battery dont charge, i opened it and try to charge directly to cell. Its very difficult t...

@Albertpons1995 - no need to apologise for your English, it's perfectly clear and you've actually done more useful research than most people who post here.

Right, let me give you the honest picture on the BT-E8036 swap idea, because there's a critical compatibility problem you need to know about before spending any money.

The BT-E8036 is not compatible with EP801 drive units. Your Crave AL50 runs the EP801, so the Shimano BT-E8036 won't communicate properly with your motor regardless of any physical adapter you find. That's a hard wall, not a workaround situation.

The link you shared from Bike24.es is actually a battery mount bracket (the Shimano BM-EN800-A, priced at around €91.50) rather than a battery itself. It's the holder that sits inside the downtube. It could be part of a conversion kit concept, but without a compatible battery to go in it, it doesn't solve your problem.

On your existing Darfon battery: these batteries are normally only available through the bike manufacturer, because Darfon adds custom mechanical parts and connectors specific to each frame.

You generally can't interchange them with a different capacity, because the manufacturer designs the frame around the specific battery chosen.

So your best first move is to contact Megamo directly. Being based in Spain, you're actually in a good position - Megamo are a Spanish brand (from Girona), so there's no language or shipping nightmare involved.

There's also a slim chance your battery isn't fully dead and is just in a deep protection state.

There are known cases of E914/E915 error codes caused by Darfon batteries being flagged as incompatible with the EP801, which can cause the motor to cut to safety mode.

If your battery won't charge at all, it may have gone into a deep discharge state where the BMS (battery management system) is blocking all charge input - which is different from the cells actually being failed. Attempting to charge individual cells directly is risky and usually not the right approach.

Before you consider anything exotic, try this path first: • Contact Megamo Spain directly - ask specifically for a replacement Darfon 630Wh battery for the Crave AL EP801 system

• Ask if they can do a BMS reset or warranty assessment (five years is borderline for a goodwill claim, but worth trying) • Check if any Megamo dealer in Menorca or Mallorca can connect it to Shimano E-TUBE diagnostic tools to read the battery's actual state

If Megamo can't help and you want to explore a third-party rebuild of the existing pack, there are battery rebuilders in mainland Spain who work with Darfon cells. That's probably a more realistic path than a Shimano BT-E8036 conversion. Worth asking on the Spanish eMTB communities like Bicicletas.net or Vitoria MTB groups if anyone has gone that route with a Megamo specifically.