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Makes And Models => Zero Motorcycles Forum | 2013+ => Topic started by: karlh on February 04, 2026, 04:36:00 AM

Title: Zero MBB V44 and BMU V19 Firmware Version Descriptions
Post by: karlh on February 04, 2026, 04:36:00 AM

The version description for these firmware updates is available on the Zero Motorcycles website.

Title: Re: Zero MBB V44 and BMU V19 Firmware Version Descriptions
Post by: 2020_SRS_Commuter on February 04, 2026, 11:55:12 AM

Thanks, I was waiting before letting it update. The site says it was updated 2-4-2026:

2020+ Cypher III
2020+ SR/F & SR/S + 2022-25 SR + 2023+ DSR/X + 2024+ S & DS & DSR
MBB V44, BMU V19
New: Power management of main power pack optimized for transport and seasonal storage.
Fix: Transitioning logic to limp state is now more predictable.
Fix: Refined BMU voltage measurements to prevent false fault triggering.
Fix: Odometer format refined to follow international diagnostic standards.
Fix: Refined BMM initialization of critical settings during startup. 

Title: Re: Zero MBB V44 and BMU V19 Firmware Version Descriptions
Post by: hutec on February 07, 2026, 04:26:05 PM

I made the update on my 23 DSRX . Update went fine with App on phone
My hope they would improve also the charge rate at > 50% with 12KW Charger setup.
But no,
 it is as bad as before.