#BatteryManagementSystem

Yonhap Infomax Newsinfomaxkorea
2026-01-27

DKT, a BH Group subsidiary, is set to supply key battery components for Boston Dynamics robots, marking its entry into Hyundai Motorโ€™s U.S. robotics value chain and accelerating its shift from smartphone parts to robotics and ESS markets.

en.infomaxai.com/news/articleV

Harvey Sandstromcd0
2026-01-15

I discovered I should be designing around the BQ40Z80. TI likes to tell you should use the BQ41Z50, but it is limited to only 4 cells. Or the BQ41Z90, but it seems to be stuck in development hell: The 41Z90 is still in "preview" and the "advance information" PDF is over a year old now.

Weirdly the 40Z80 was designed for 7 cells, but they downgraded it. I'm guessing the accuracy is crap for more than 6 cells.

ti.com/product/BQ40Z80

Doreen XuDoreenXu
2025-12-31

When your BMS communication canโ€™t afford a single glitch โšก
Daisy-chain architecture + automotive-grade ESD & surge protection = rock-solid battery safety ๐Ÿ”‹
From MC33664/MC3377X to IEC 61000-4-2 compliance, this is how next-gen automotive BMS stays alive under stress.

๐Ÿ’ก Stability isnโ€™t luck โ€” itโ€™s protection done right.
medium.com/@yamy28508735/autom

๐Ÿ”— ๐—™๐—ถ๐—ป๐—ฑ ๐—ผ๐˜‚๐˜ ๐—บ๐—ผ๐—ฟ๐—ฒ:[en.leiditech.com]
๐—–๐—ผ๐—ป๐˜๐—ฎ๐—ฐ๐˜ ๐˜‚๐˜€: sales16@leiditech.com


BLE VoiceJim8888
2025-06-21

The KT6368A dual-mode Bluetooth chip offers distinct advantages for BMS lithium battery applications:
โœ… Compact size & cost-effectiveness make it a top contender.
โœ… SOP8 package simplifies integration.
โœ… Enables flexible module designs, reducing costs for manufacturers.


linkedin.com/pulse/selection-g

The KT6368A dual-mode Bluetooth chip offers distinct advantages for BMS lithium battery applications:
โœ… Compact size & cost-effectiveness make it a top contender.
โœ… SOP8 package simplifies integration.
โœ… Enables flexible module designs, reducing costs for manufacturers.

By adopting the KT6368A, companies can optimize BMS board designs while maintaining compatibility and affordability.

#KT6368A #DualModeBluetooth #BLEmodule #SPPBluetooth #BMSprotection #LithiumBatteryBMS #BatteryManagementSystem #ActiveBalancing #WeChatMiniProgram #LiFePO4BMS #TernaryLithiumBMS #JDY33 #D32module #DXBT24 #HC05compatible
bee :v_trans:Bees@tech.lgbt
2023-06-19

Any #priority #current #ebike owners out there? I just noticed that when my battery is on my bike itโ€™s showing 1/10 charge level, but when I take it off and press the little indicator button itโ€™s showing me 2/4 charge level. Which one should I trust? Iโ€™ve only done 4-5 charge cycles on it since itโ€™s new so is this the type of thing that will normalize over time?

#ebikes #electricbike #prioritycurrent #battery #batterymanagementsystem #chargecycles

2023-01-06

@concretedog @NormanDunbar
I have 10pcs of those modules too. Problem is I now have over 60 unprotected batteries and I keep finding more. Might have to parallel them up or make my own BMS
youtu.be/qRVEJjk5B_g

#BatteryManagementSystem #YouTube #electronics

Fighting Back Against Dodgy Dyson Batteries

If you've ever worked with multi-cell rechargeable battery packs, you know that the individual cells will eventually become imbalanced. To keep the pack working optimally, each cell needs to be analyzed and charged individually -- which is why RC style battery packs have a dedicated balance connector. So if you know it, and we know it, why doesn't Dyson know it?

It's that question which inspired [tinfever] to start work on the FU-Dyson-BMS project. As you might have surmised from the name, [tinfever] believes that Dyson has intentionally engineered their V6 and V7 batteries to fail by not using the cell balancing function of the onboard ISL94208 battery management IC. What's worse, once the cells get as little as 300 mV out of balance, the controller considers the entire pack to be shot and will no longer allow it to be charged.

These missing resistors deserve justice.

Or at least, that's what used to happen. With the replacement firmware [tinfever] has developed, the pack's battery management system (BMS) will ignore imbalanced cells so you can continue to use the pack (albeit at a reduced capacity). Of course the ideal solution would have been to enable cell balancing on the ISL94208, but unfortunately Dyson didn't include the necessary resistors on the PCB. Though it's worth noting that earlier versions of the board did have unpopulated spots for them, lending some credence to the idea that their omission was intentional on Dyson's part.

But not everyone is onboard with the conspiracy theory. Over on the EEVBlog forums, some users pointed out that a poorly implemented cell balancing routine can be more problematic than not having one at all. It's possible that Dyson had some bad experiences with the technology in earlier packs, and decided to move away from it and try to compensate by using higher-quality cells. That said, at least one person in the thread was able to revive their own "dead" battery pack by installing this unofficial firmware, so whether intentional or not, it seems there's little debate that usable batteries are indeed being prematurely marked as defective.

Proper cell balancing is key even in DIY projects, so we do have to agree that it seems more than a little unusual that Dyson would intentionally turn off this important feature in their packs. But the jury is still out on whether or not Sir James is trying to pull a fast one on his customers -- as Hanlonโ€™s Razor states, โ€œnever attribute to malice that which is adequately explained by stupidityโ€.

#batteryhacks #batterymanagementsystem #batterypack #dyson #plannedobsolescence

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