Hi Pol098,
You raise a lot of good points here. Firstly, this is my first foray into anything to do with any kind of batteries or electronics, so you’re not speaking to an expert here.
To answer your last question, as I say, I did crack open the case with a kitchen knife, but it hasn’t given me much of a clue it it could have been opened more easily. I mean I’m sure it could have been done more carefully, without doing any damage to the case, but at the end of the day, while there are two tiny plastic pins that go into tiny holes there, and while it appears to “clip” to some extent when I tried to reassemble it I think that the case is ultimately held together by glue, as you suggest. The person who does it next (I hope it’s not me again trying to open another faulty unit) should try suction cups as a matter of first resort.
As for the batteries you suggest, none of the would fit. Sorry I forgot to mention the thickness, but it measures at only 2 mm. Maybe a slightly thicker battery would fit without pressing too hard on the electronics.
Also, can I ask, when you say that the first thing after removing the battery is to test it, how exactly would I go about testing it? What kind of equipment would I need to use and what would the readings reveal? I know you can measure the battery’s voltage with a voltometer, but can you measure full and remaining capacity?
Here’s a post I wrote on an Instructables page which should explain the situation with the battery to a greater extent. This post deals which restoring the original battery. I understand that this may cost more in equipment than buying a new unit, but I may give it a try just for the sake of it and seeing that it’s a problem that Zeo users may run into in the future.
Hi there!
Thank you for your instructable on restoring lipo batteries. I have a very tiny lipo battery from a medical device which doesn’t seem to take charge. Here’s a picture of it: https://www.google.com.au/search?q=pp312122AB&rlz=…
All I know it’s a 3.7V battery. It measures 2mm by 20mm by 20mm. Unfortunately, one is not available for sale and a replacement would also be hard to find. So I’m wondering whether it can be restored. Because it’s supposed to be charged for 3 hours and the writing on the charger says 5V-0.5A, I worked out that the capacity of the battery is 0.5A X 3 = 1.5Ah. However, I cannot imagine such a small battery having such a large capacity. Usually batteries of this size have a capacity not exceeding 0.1Ah. I know that my only chance of restoring this battery is using a micro charger which can produce currents as low as 10mAh.
Moreover, the wires from the battery seem to be soldered onto the electronics board, rather than connected. I would imagine that to connect the wires to a charger of any sort, I would have to break off the wires and fit them into a JST plug, which is another thing I don’t know how to do. Finally, when it comes to soldering the wires back on, the whole thing is on such a micro scale that even if I was familiar with soldering (which I’m not), there would be a great risk of damaging the electronics board. Do I have a chance of recharging this battery?
Thanks!
Kind regards,
tolerant