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Hello everyone,
I have a pair Recon Jet glasses with a battery that is not charging.
How can I repair it. Maybe someone knows the part number that I have to order.
It is like this one:
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At the end battery was replaced and working.
Thx to @dadibrokeit for the battery idea!
At the end I went with eBay and this model
https://www.ebay.com/itm/194981985707
3.7V 501646 LiPo 500mAh: 5 mm thick, 16 mm wide, 46 mm long
The original was 701547 490mAh: 7 mm thick, 15 mm wide, 47 mm long
Which means the second one has improved technology, because it is smaller and have slighter better capacity (500 vs. 490mAh).
So here we go:
(I am not able to upload the all photos I will try below latter. I have put Figure 1 and 2 which are the most important)
1. Cut out the old battery. Keep of the metal strips 1 mm approximately, that will be very useful to weld new wires.
2. Remove the Philips screw that keeps attached the circuit to the plastic case.
3. Weld the wires of new battery to circuit board (Figure 1). Don’t forget to put before heat shrink into the wires before (2 mm in each wire).
4. In Figure 2 the result after welding and heating the heat shrink.
5. Screw again the circuit to the case and put a plastic protector on the electrodes (just in case), thought the new battery comes with nice isolation (Figure 3).
6. Remove some plastic edges inside the top plastic case, because it will be easier to fit the wires and all the stuff, when closing (Figure 4).
7. Take care when manipulating the top case with the spring mechanisms: it is very tiny and if it get out, as happened to me, it is a little pain to put in place again.
8. Put everything together both cases and close it. Maybe you have to proper fit the wires in and make a little pressure, but the 4 tiny Torx screws will keep everything close.
Done. Now the glasses power on properly and with good capacity and…
Nice blocking screen, telling you to active in Recon website appears! This company I thing is out of business from some years ago, but that will be another puzzle to solve I’m afraid.
The glasses were not expensive in eBay, but if anyone knows have to activate them, I will appreciate so much!
Thanks for reading.
crwdns2934105:0crwdne2934105:0
Hello, I have foud some info about the block problem here https://forum.xda-developers.com/t/recon...
hello can you put again the référence of the battery you had founded to replace the original
thanks
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@jmuller1980, Yeah, that battery is almost certainly swollen, which means its desperately in need of replacement.
I'd start out by removing that screw and pulling the battery+circuit board assembly out of the case. Many times those lithium batteries can be ordered by size; in other words you measure the battery's length, width and height in centimeters and do a search base on that number.
For example, I needed a battery that measured 5.0 cm x 2.0 cm x 0.4 cm. That translates to a battery number 402050, which you then search for. If you take off that black strip of tape on top of the battery, there may even be numbers already on it.
If you can get some pictures of the connection between the circuit board and the battery, most likely you'll find there are just two wires, a red (positive/+) and a black (negative/-). You'll probably have to solder the wires onto the board, but won't know for sure until we see pictures of the top and bottom side of that board.
Good luck; let us know what you find!
crwdns2934105:0crwdne2934105:0
Ok, I will proceed as you suggest and post photos of the connections.
Other possibility maybe, is that the battery is below a threshold and cannot be charged.
Maybe charging it with AC/DC adapter can recover it. I don't know.
@jmuller1980 That is a possibility, but check the outer covering on the battery itself. If it's pillowy at all, then it must be replaced; that's an indication that the chemical reactions inside the cell are no longer working correctly and are instead generating gasses. Batteries that do that are a fire hazard; they can quite literally explode. Ask anybody who owned a Galaxy Note 7.
Good point!
I will proceed to the disassembly and be back.
It is dismounted.
The numbers are at the bottom: BP 701547 - 490 mAh - 3.7V
It seems does not have wires. Just two plates solded to the small circuit.
[image|2879277]
[image|2879278]
I added as answer, cause is the only way to add images it seems...
crwdns2934065:0crwdne2934065:0: 1
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It is dismounted.
The numbers are at the bottom: BP 701547 - 490 mAh - 3.7V
It seems does not have wires. Just two plates solded to the small circuit.
crwdns2934105:0crwdne2934105:0
Okay, so far so good. You're definitely looking for a 701547 lithium cell; that's 7 mm thick by 47 x 15 mm L x W.
With Lithium batteries, the capacity in mAh is pretty much strictly determined by the size of the battery. Since all of them are going to be 3.7V, you can actually use any battery that will physically fit within the space you have available. The obvious choices are going to be a smaller size battery if you can't find that exact one, but you'll reduce the mAh available storage with a reduction in size.
I'd probably start out with a general internet search for a 701547 battery, then try something like AliExpress who is most likely to have a decent selection of lithium cells to choose from.
It sounds like that circuit board is probably the BMS (Battery Management System). Most of the batteries you're going to find already have one mounted to the cell; I'm guessing your best strategy here is going to be to remove the BMS that comes with the cell and solder the bare cell onto your little circuit board.
P.S. Just a note; that battery is definitely swollen and must be replaced.
Ok thx! I will try an ebay search maybe and order+replace the battery
Maybe this one:
This is even better: 500 mAh
I asked your question to chatgpt and the answer is below, so interesting：
If you are experiencing battery issues with your Recon Jet glasses, there are a few things you can try to repair or improve the battery life:
It is important to note that attempting to repair or replace the battery yourself can be dangerous and may void the warranty. It is best to contact the manufacturer or a qualified technician for any repairs or replacements.
You can also chatgpt login to try.
crwdns2934105:0crwdne2934105:0
Yes interesting but not useful...
Charge the battery: Make sure the glasses are fully charged ..
*Done but with no result. After disassembly battery is swollen and most probably internally damaged.
Check the charging cable: Make sure the charging cable is functioning properly. If it is damaged or not working correctly, replace it with a new one.
*I have tested with other cable and another battery and they work.
Restart the glasses: Try restarting the glasses to see if this resolves the issue. Press and hold the power button for several seconds until the device turns off, then turn it back on again.
*They dont start with the old battery.
Adjust the brightness: ...
*They dont start with the old battery.
Close unnecessary apps: Close any unnecessary apps or processes that may be draining the battery.
*They dont start with the old battery.
Replace the battery: ..
*The manufacturer does not exists. It has stopped to operate/dissapeared.
In any case, thx very much for the try.
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The Figures 3 and 4, that were not uploaded before.
crwdns2934105:0crwdne2934105:0
Hi, I have the same problem too, where can I find a compatible UBA battery?
Can you help me? I reset the glasses and now it asks me to activate them, but the site no longer exists.... 🙄🙄🙄🙄
Is there a way to activate without the official site????
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I was able to repair the battery with the help of Jerry W @dadibrokeit
See my own response below.
Thx
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