The Purge | eBoosted Sportster ❤️ | XTLA | Stormcore | TB 6380 | TB 110 | SR RKP | P42A |

Parts Update:

  • FlexiBMS Lite :heart_eyes:

So far there’s been no perfect solution that was readily available for a smart BMS.

I’ve known about @SimosMCmuffin’s FlexiBMS for a long time but it was always an unattainable dream, until now of course! Simo opened up 25 units for the Flexi BMS and I knew I had to get on it. The Google form opened up at 4:00 am Sydney Australian time so I woke up on the dot and filled it out the moment it was posted :joy:

Apart from it being developed by a standup guy from the DIY community, there are major benefits over other off-the-shelf offerings. For me it was a choice between this or using the LLT BMS externally.

Pro’s of the FlexiBMS:

  • So small!
  • Integrates into other management and telemetry systems over CAN (VESC, metr pro etc)
  • Ongoing software and hardware development, allowing for more sophisticated integration.
  • Open source and developed by our favourite muffin @SimosMCmuffin
  • Looks tasty af
  • Charge only

Pro’s for LLT Smart BMS:

  • Affordable.
  • Can’t think of any other pro’s lol.

For me, the biggest priority is to be able to check individual cell voltages over bluetooth. Which means I overlooked the fact that the FlexiBMS doesn’t come with bluetooth functionality out of the box (at least I don’t think so…) But not to worry since it automatically integrates into the Metr Pro module.

Total cost comparison USD: (incl. shipping)

  • LLT Smart BMS = $58.20 USD
  • FlexiBMS + Metr Pro = $152.70 USD

For me the price difference is totally worth the smaller footprint, not to mention the enormous uplift in functionality with the Flexi + Metr integration! :heart:

Seriously can’t contain my excitement over the Flexi + Metr integration! Absolute game changer! The next big step in development is direct VESC integration over CAN, allowing the vesc to read individual p groups and slowly ramp down power draw if voltages are too low for a particular p group, doesn’t seem complicated to implement in theory but I know less than zero about that sorta stuff!

Battery Supplier update:

Have finally placed an order for 52 Molicel P42A’s from Vapcell. Customer service has been great so far. They don’t list the Molicel or its price on their website so email them for a quote and an invoice if interested, so far they have been very pleasant to deal with. Eva from Vapcell usually responds within 1 hour or max 24 hours. Will update when batteries start shipping and how long they take to get here.

XTLA SR Mounts:

Super fast shipping from @XTLA! He got them out extremely quick and they arrived in Australia within three days. Only issue is I wasn’t at home when DHL delivered them so they’ve been at their holding office since then, will be re-delivered tomorrow!

Wheel choice:

Have been kick pushing some kegels on the SR RKP’s and Loaded Vanguard. Quite the odd combo, love the grip of the new kegels, but RKP’s are obviously not designed for low speed carving :joy: Still having so much fun just dicking around bombing small hills. I really want to learn how to slide within the coming weeks, lets see how that goes…

Some booty pics of the analog setup.

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