If my battery is dead and I won't be using the S1 for a while, does it matter for battery life if I keep the battery in the S1 or is it better to take it out?
If my battery is dead and I won't be using the S1 for a while, does it matter for battery life if I keep the battery in the S1 or is it better to take it out?
If your battery is dead, you'll want to change it but not to 100%. For best life on lithium ion batter, it is better to be between 40% and 80%. I would do 75%. Then, I would remove the battery from the S1 Pro unless yours does not drain the battery when not in use.
My battery, fully charged at 10 pm Saturday, was dead by noon on Monday when I next went to turn it on. Iv'e used it ONCE on battery power for half hour . Only a few months old.
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To those who are subscribed to this discussion, you may have noticed that a recent post is no longer visible here. I have taken the matter up privately with the author of that post.
Two units here. Both show the discharge issue. 2019, and 2018. The 2018 unit also won't show a completed charge at the flashing blue light on the unit until it's disconnected, turned on, shut off, back on charge and then it will stop flashing.
I charged mine again and left it on Friday afternoon (unplugged and switch in the middle/off position), I will check it next on Monday night.
My worry is that the 'fix' only reduces the issue rather than curing it completely, rest assured I shall be testing my final replacement thoroughly before accepting it as 'fixed'.
It's a mystery. Really hush hush stuff about which ones are affected. There's a fix coming. But, there's no hint of what might be causing it. Or when the fix is coming.
(Not the best answer). I'm sorry.
The battery issue seems to only affect batteries that are just sitting for awhile.
I'd need another one or two S1s for product presentations in a factory hangar.
Are the new ones ok or do they also suffer from the battery drain illness?
Bose have not said whether they have discovered what is causing the issue so the only safe assumption to make is that a new S1 is likely to have the same problem. But not all S1's have the issue though, I suspect, the number is much higher than thought as many that do have it will go unnoticed if owned/used by 'compulsive chargers'.
To be clear the problem is that a fully charged Bose S1 that has the issue will drain it's battery, when switched off, to zero in the space of a few (5-10) days so it will only manifest itself if you leave an S1 unplugged and switched off for a few days. If you charge an S1 prior to use the battery life is not affected so it may be that your usage is not affected even if the S1 has the problem.
It's a mystery. Really hush hush stuff about which ones are affected. There's a fix coming. But, there's no hint of what might be causing it. Or when the fix is coming.
(Not the best answer). I'm sorry.
The battery issue seems to only affect batteries that are just sitting for awhile.
The issue is of the S1 slowly draining the battery when it is switched off. If you remove the battery it will retain it's charge for several weeks as expected of a Li-Ion system*, if you leave it plugged in it will keep the battery 'topped up' and if you use it frequently you will not be aware if it has the issue.
* though for some reason Bose have apparently implemented a 'sleep mode' whereby the battery will go to sleep after 30 days, needing to be plugged into the mains to re-awaken it.
My gut feeling? It's a not so reliable/consistent battery that was used in certain units getting made. Not Bose's fault. It's probably a battery that was obtained overseas and there's no consistency in the manufacture of those batteries. I don't think there's anything wrong with the S1. (which I love)
Perhaps the supplier of the batteries changed. So, certain units were made with batteries of lesser quailty.
I'm almost certain that's what it is.
Let's start cracking the battery cases open and take pics to compare what they look like.
My gut feeling? It's a bad battery that was used in certain units getting made. It's probably a battery that was obtained overseas and there's no consistency in the manufacture of those batteries. I don't think there's anything wrong with the S1. (which I love)
Perhaps the supplier of the batteries changed. So, certain units were made with batteries of lesser quailty.
I'm almost certain that's what it is.
Let's start cracking the battery cases open and take pics to compare what they look like.
I don't think that's very likely. When I first reported the issue, Bose sent me two replacement batteries (I have two S1 Pros). That didn't solve the issue. I was, also, sent replacement S1 Pro units over time and they all had the same issue. If the batteries were bad, they wouldn't hold a charge when removed from the S1 Pro and stored but they do. To be honest, I think there are people that have the issue and don't realize it because they use the S1 Pro so frequently that it doesn't sit long enough to drain or, as one of my friends does, they don't use the battery at all. He's not interested in operating it off of the battery so he plugs it in at every show.
It's has now been 6 days with my S1 not plugged in, with the power switch in the off; middle position. It is still at 100% battery charge according to Bose connect; My S1 is working correctly.
Yes, that's looking good but bear in mind the app does not register a drop until it falls to 90% or less. However 6 days to lose less than 10% should be liveable with even if it does actually have the issue.
If mine is still showing 100% when I get home at the end of the month (which will be 11 days after I unplugged it) I'll probably be happy to keep it, pretty confident it won't though
Been experimenting checking my batteries on my two S1's by leaving them fully charged and left unused for 5 weeks at a time, to find that the batteries appear to be discharged, and units won't switch on. But have found that they are actually still fully charged, and have gone back into SLEEP MODE and need reawakening by plugging the S1 into the mains for 10 seconds, after which they work perfectly and show 4 flashes. This might be what is happening to other peoples batteries as well.
