This conversation has been merged. Please reference the main conversation: Battery fuel meter
I'm evisioning a small thing that you can pop on your battery that understands the various different models of batteries that ego has made and makes now (if you had to manually select with a button which type you had that would be fine too). You clip it to a battery and it tells you percentage remaining on that battery. Should be much better than Greeen, Yellow, Red, etc. You don't leave it on the battery, you just have one and check each battery you want to know and then can more easily tell which ones you should charge or carry with you for a job b/c you know which ones have enough juice to do the job, etc. This would suffice a lot of the complaints and not require Ego to make new batteries or gauges in the tools themselves. Seems like a fair solution and keeps costs down (which are already too high for batteries when buying them alone).