Any Advantage to Lithium with Bluetooth?

StirCrazy wrote:

3 tons wrote:

StirCrazy wrote:

3 tons wrote:
Sounds like your talking about a drop-in style battery - if so, I’m not aware of ANY drop-in w/bluetooth that displays BMS Info…BMS operates ‘passively’ to avoid catastrophic events (upper and lower charge limit and temp parameters), and secondarily for individual cell balancing…Perhaps PT can inform us about a drop-in make with the feature he suggested??

Personally, I’d skip the Bluetooth…

3 tons

Lots of let you adjust some parameters with the blue tooth now as the blue tooth is part of the BMS, they just lock out the settings they don't want you to play with when they design the app that is used to connect. so, for instance, I bought the JBD BMS for my battery and using its native app I can alter any BMS setting, but if I was making them and selling them, I would make my own app designed off the native JBD but lock out any setting that is there for the safety of the battery like the low temp cut off for example. others I might limit the range it can be adjusted within. all easy enough to do if you're an app designer.

Please clarify, such BMS programmability has not been my experience having had two different drop-in LFP’s…Perhaps you’re referring to a homebrew, or maybe suggest a drop-in brand that has programmability?

3 tons

lots of "drop in" LFP use the exact BMS I have, well maybe lower amp ratings. like I said they may customize the interface so you can't access specific things, but you can still monitor and usually you can set your own numbers for cold charge protection, bottom and top cutoff and such, they will just limit it so you can only change those numbers to the safer side of the scale instead of something that can damage the battery. If they are advertising "Bluetooth or wifi" connectivity there is a chance you can do what you want if you can get the native app to work in place of the modified app. so, home brew or not if they are using the Bluetooth BMS, they can be adjusted through that, unless they modify the app so it can't be. Like I have said, I have seen reviews of some that are a monitor only limitation that is done through the actual hardware, but those you can still get into with a physical cable if you open the cover up. Others I have seen a range now of limited setting capability, to monitor only done through the app which can be worked around as it is a Bluetooth connection. You just need the connection info from their app then figure out which app they used and modified and get that and connect. Would I recommend this to anyone, not really unless you were out of warranty and knew what you're doing.

Got it, kinda interesting…FWIW, my drop-ins are tamper-proof - but either way, since mine came with a 10yr warranty I’m happy to leave the experimentation option to the more capable and adventurous :)

3 tons