Question about Nextar X3-02 GPS Receiver
Need replacement battery for above model
Actually, it's quite easy to replace:
i. Take off four screws at the back.
ii. Between the body and the front bezel, insert a utility knife. The bezel is fixed to the body with tabs. I started from the left hand side from front. The tab is in the center. Careful not to scratch the bezel or the body. Once one tab is open, you can slide the knife or whatever tool you're using to open the rest. Be careful not to scratch.
iii. Once the front bezel comes off, you'll see that the touchscreen is held to the bezel with the help of four tabs. take the touchscreen off.
iv. Next, take the ribbon cable off from behind the screen. You'll have to flip the flap holding the cable open.
v. The screen is held to the main board with the help of a tape. Don't take it off. Take off three smaller screws which fasten the circuit board to the back body.
vi. Take the antenna off. It's quite easy. It's the same connector that is used for Blue-tooth or wireless antenna on laptops. It'll just flip off.
vii. Next, take the board off from the back plastic body. The circuit board will still be held to the back by two connectors, one (two wire, smaller one) connecting the circuit board to the speaker, and another (larger one, four wires) connecting it to the battery. Both the battery and the speaker are for now fixed to the back plastic body.
viii. Once you've done that, the battery is exposed. Take the battery off (held by two tapes, and some double sided sticky tape to the back body).
The battery is 35mmx55mmx5mm. Buy any 3.7v battery from ebay. That'll cost you about $10, including shipping. The only problem is that on ebay, you might not be able to buy the same connector. Most of the batteries that you get from there also have protection circuitry to protect against overcharging etc. So you'll only have to replace the connectory. For this, take apart the battery from top. Just peel off the green tape. That will expost the connections. Solder them off, and replace the entire chord on the new battery.
Sorry, I'm too depressed right now on account of loosing my job :-) Otherwise, I'd have included pics too. But I guess if you're not afraid to do DIY projects, you should be able to change the battery yourself. Quite easy.
Posted on Dec 26, 2008
My Nextar opened pretty much the same way. Mine was very tightly bound together with that sticky tape. It was a real delicate bit of finger ballet and cussing to get it open. Then I tried to remove the #$&X#!! speaker connector from the circuit board to avoid stressing the wires. The thing was held on so tightly that I tore one of the wires from the connector. Oh great. Nice. More micro-soldering to do. The battery was also bound down to the circuit board quite tightly with more of that insipid tape action. I really had to pry and fiddle with it to get it to peel off. I head to my local battery store tomorrow and (hopefully) find a suitable replacement battery. Based on what I'm seeing, I very highly doubt that I can find the exact factory replacement, and quite frankly I don't want another Chinese made battery anyway as it has been my experience that they don't make diddly piddle squat for batteries in China- so I'm hoping for a Japanese or SOMETHING else.
Posted on Aug 20, 2009
Instruction to replace with iPod photo battery.
I successfully used iPod battery (that fits 4th gen iPod or photo iPod) to replace the dead one inside my Nextar X3 GPS device. Since iPod is a very popular device, there are plenty of these batteries sold on ebay and amazon. I bought mine from accstation seller for $6.29 with free shipping. This battery is rated at 1200mAh, and is slightly smaller than the one inside the Nextar: 35mmx50mmx3.5mm vs 35mmx55mmx5mm. The iPod battery comes with some tools that makes it easy to pry off the LCD screen from the Nextar's body.
To open up the case, remove 4 screws on the case, pry off the LCD screen from the case. Inside the body, there are several pieces of tapes that connect various things together, feel free to remove them as they can be re-attached. Remove the 3 screws on the circuit board and pry it off the case. Unplug the speaker connector and the battery connector. The battery is stuck to the case with a very strong adhesive tape. Put a thin knife (or envelope opener) between the battery and the case, and twist it so get the battery out.
I didn't need to solder anything. Just had to strip the wires and twist them together. I cut off the 3-hole connector on the iPhone battery and replaced it with the 4-hole connector on the old Nextar battery. The wiring works as follows: Nextar battery has 2 red (hot) and 2 black wires. The iPod battery has 1 red (hot), 1 black, and 1 white. I just connected the 2 red into the 1 red; 2 black into the 1 black, and left the 1 white alone. I didn't know what this white wire is for, so I didn't use it at all. If anybody knows, please speak up.
If you have never connected wires before, here are some instructions. Use a wire stripper or a sharp blade, cut around the wire about 1/4 inch from the tip. Do this Gently so that the copper inside is won't be cut. Pull off the plastic to show the smaller copper wires inside. Use the blade or knife to scrape gently on the copper wires to remove the thin coating around the tiny small wires inside. To connect two wires together, just twist the copper wires of them together. Then put black tape around the bare wires so that they don't touch and short the circuit.
It works fine and charges fine. The battery doesn't last as long as the original, as it's physically smaller. But it's one of the few that fits inside the case.
Posted on Oct 18, 2009
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