No it is not a useless metric. One charge cycle is just going from 0ah to 3000mah with a 30q as example.
This is just the same amount off power used, so the same amount off charge cycles: 100 times
What you maybe can do to add a charge cycle counter is: let the people select the total amount wh off their battery and that you divide that with the total wh discharged
The real question is what the impact on the battery wear is. If you discharge the battery to 0% once, is it the same as if you discharge it to 50% twice? I wouldn’t think so.
Sure, I can do that. The battery capacity already needs to be configured because it’s used for determining the battery SoC. This would be a simple division of two numbers. I just need to figure out where in the UI the value goes, which is always a problem. 
Is the davega x something you are going to have as a on the shelf item or more of a group buy thing?
Charging your battery to 4.2v also decrease the life. Then you better charge to 4.1v and discharge to 3.2v. Also talking in % makes is difficult. The capacity is not lineair. But the difference between all the impact on battery wear if you don’t go over 4.2v and under 3-2.8v is not a big difference.
The best thing for a li ion battery is just keep the discharge an charge so small as possible (so take in theory smaller then 0.1v) and the discharge and charge current so low as possible
I’m trying to keep them on the shelf but I have too many orders coming in so they always run out quickly. People are terrible. 
I’m seriously thinking of changing things a little bit in order to increase the bandwidth. Right now I ship most DAVEGAs fully assembled and I do all the assembly by myself. It’s a lot of work and I simply don’t have enough time to do it. I could send them semi-assembled instead. The idea is that I only do the more critical part myself – that’s mainly assembling the PCB – and leave the rest with the customer. It would be mostly simple DIY tasks like soldering wires to buttons, glueing the protective glass into the housing, and tightening a few bolts. Pretty easy to do for anyone (though a bit time consuming). Plus, even if they do mess up any of that, it’s easily fixed. I could also make the price a little cheaper then. The more I think about it, the more I feel this is the way to go. We’re on a DIY forum after all, right?!
heck yes. I’m all for it.
That’s great it’s selling so well. I got mine a while ago still haven’t used it since my build is taking awhile. I plan on using one on every build besides my short boards.
Finally some more significant developments. Looking for DieBieMS + DAVEGA X users for testing.
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i want it
I’ll send you one. I just need your credit card deets. I will, of course, I’ll be adding a second one for my troubles.
Yeah let me know when you find 'em.
Just to clarify, im talking about the deets to the account with 1.2 gazillion in it that my estranged parents left without me knowing, not the current account with 42 cents in it
I think you’re confused, it’s my account that has 42 cents in it 
I’ll have all three once my flexi arrives 
What exactly do you need tested?
But you have something to show for it Mike.
You’ve got 30 subscriptions to Bills Nude mail out. I’ve got nothing 
Perfect! Do you have the DieBieMS connected to your VESC via CANBUS? If you do, I could just send you the development version of the DAVEGA firmware to check everything is working as expected on your end, especially reading the BMS data.
Those were free 
Nice dude. I have a diebie in a box somewhere I could find and set up at some point soon.
I didn’t see the reason for me to get one so far, but now I need it
How power on would work? Any way to have the Davega power on when the charger is connected?
For now you need the VESC to be on for the DAVEGA to be on since:
Then the question is if DieBieMS can be configured such that it enables discharge (and powers on VESCs and DAVEGA) once the charger is connected. I haven’t yet looked into it.
Next generation of DAVEGA will have CANBUS and then VESC is no longer needed to relay so it can remain off while charging.
