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Re: battery part number
I am not able to find the part number for this product because Sony doesn't have the battery for this GPS listed on their Parts and Accessories website. I'd recommend either giving them a call at 1-800-488-SONY (7669) or using their Parts Research Request form to get more information.
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Computer voices, if stored on the unit and enabled, will give you all instructions (turn, ahead, street names, etc.) Custom voices (Simpsons, star voices, etc.) can only egg you on, but cannot say the name of streets. Make sure that you have at least one computer voice in your favorite language.
This is a common problem with some Garmin GPS units and a fragile power on switch, especially on units with top mounted buttons. Garmin is aware of the problem and is pretty good about arranging an even exchange. Go to Garmin.com to the support center where you may email or call a tech who will give you a RMA number to send your unit to.
I have a 205w and have been very frustrated with this same issue, but I just so happened to find the following fix on another site today and it works great.
Follow these steps:
Turn on the unit on battery, press the battery icon and hold for about ten seconds, and the unit will switch to the diagnostic mode. Now plug in the USB cable and it will give you a loud bleep. Exit the diagnostic mode and it will operate normally while charging. This was handy to enter favorites while it was charging.
You can get a manual free by calling 1-800-456-5432. The Bottom Line Tournament 1101 is made by Hummingbird. I got the number from a sport shop here in Roseburg, OR. Called it and they're sending me the manual free! Good luck. -- Gary
The problem is very simple... The GPS unit perceives whatever you plug in depending on the power supply figure.
If you car charger is not giving enough power, then the GPS perceive the cable as being connected to a pc.... thus not charging. Check with an car electrician if you can raise the power supply on your car...
Sounds like you both have a battery problem. I experienced a similar problem when trying to charge via the USB-cable connected to my computer. Ended up buying an original charger (expensive) and the charging went smooth. The car charger should in any case work fine, so probably your battery is not very healthy.
Try holding your finger on the battery symbol for about 10 sec. The unit will then switch to a technical page. There you can observe the battery and charging voltage. When I plug in my computer USB-cable, I read around 4,4V and that is not sufficient for charging my battery. When connected to the original charger, this voltage rises to about 5V which gives a nice charge. When unplugging charger, the unit displays the battery capacity. If the charging voltage is OK, but battery capacity drops quickly after you unplug charger cable, the battery is probably bad. (Of course you have to charge is for some time) I think around 4V battery voltage give 100% capacity. 3,9V gives about 90% capacity. This will not solve your problem, but can give you an idea about what is wrong. Good luck.
Just pry it open (gently) with a flat bladed screwdriver. It's glued together with silicone seal. To put mine back together, I scrapped thoroughly to get the old stuff off, crazyglued the corners, then later filled the gap with silicone sealer. Easy.
The battery can be replaced. You'll need to take the unit apart and look at the ratings and physical dimensions of the battery. There will be a part number on the battery but it will be specific to the manufacturer of the battery. The rating numbers you are interested in are the mAH and voltage. You'll want to find a battery that has the same voltage and at least the same mAH rating or higher. The higher the mAH rating, the longer the battery will last between recharges. Make sure the new battery will fit inside your GPS. There will probably be a plug on the old battery that was in your unit. The new battery may only have wires. You can splice the old plug on the new battery, just make sure you get the polarity correct.
It is probably one of the following:
In 1999 the GPS satellites were reset and the new almanac data had to be loaded into the GPS 45 for it to continue to work. It was not uncommon for that model to quicly kill a set of batteries when it is having difficulty acquiring, which would cause it to shut down in order to save the batteries for its internal memory.
I just did a quick search of the Garmin website and it appears they no longer support that model. If you go to their support page and send a request for a software update they can probably e mail it to you. The update is free but to down load it, you need a PC interface cable (RS232 serial port connector) Part Number: 010-10141-00 Suggested Retail Price: $ 38.09.
To rule this one out, borrow an antenna from another Garmin 45 or Garmin 48, or plug the unit into an external antenna and see if the unit still shuts down. The drawback to this method is that you can buy a new GPS that is superior to the one you have for about the same price as an external antenna.
If your batteries are low, the unit will automatically shut off to protect its internal memory. I tried a lot of different batteries in my 45 and I found that Eveready alkaline batteries worked best. Rechargeable nicad batteries don't work very well because they fool the battery meter. Newer models have a setting to specify that you are using rechargeable batteries.
Ultimately the best advice I can give you is buy a new GPS. For less than $150 you can buy a new model that is more accurate, more reliable, stores more waypoints, has a better display, is easier to use, and gives you more valuable information.