Rating: 3.8 - 28 reviews Replace your Garmin Nuvi 780 Battery or Keep an Extra Battery on hand as a backup. This is a High Capacity 1250 mAh, Lithium-Ion Battery that offers even more up time than your original. Works in your Garmin Nuvi 780 GPS. Simple, Easy and Inexpensive! You get a New Battery, FREE Special Tools (necessary for ...
www.poi-factory.com > Garmin talk
Feb 2, 2009 - 27 posts - 16 authors
I've got a DOA nuvi 780 that I bought on eBay. It works fine while plugged into car or computer but the internal battery only holds a charge for about 15 minutes. So I guess it's not really DOA but it needs a heart transplant. Or maybe the correct analogy is a FAT transplant since the body uses fat to store ...
Rejuvenate a Nuvi Battery?
30 Sep 2011 owner rplacement of nuvii batteries
10 Jun 2009 More results from www.poi-factory.com
https://www.batteriesplus.com > Batteries > GPS > Garmin
Whether you're traveling across the country or just to an unfamiliar part of town, you rely on your GPS to get you where you're going. Unfortunately, a dead GPS battery isn't going to get you anywhere. If you're Garmin Nuvi 780 GPS needs a new battery or you just want an extra on hand just in case, Batteries Plus Bulbs can ...
A couple part answer here. The USB pin out for the Garmin is strange. If it goes into PC mode, then the cable is got the wrong pin out for the unit. Try different cables until one works.
If you can get a full charge on the unit and the battery does not provide at least an hour + of battery use, then the battery needs to be replaced. Amazon sells replacement battery kits with instructions. You just have to make sure you order the right one.
Make sure volume is up and not muted. Make sure that you have a voice selected in the voice menu. Under settings, make sure that you have guidance checked. When you press the buttons on the screen, do you hear beeps? If not, your speaker could be bad. More sound troubleshooting here:
If there is physical damage to the touchscreen, then it can become unresponsive and will need to be replaced. The touchscreen is bonded to the glass (they are one piece), so both the touchscreen & glass will need to be replaced, even though the glass may not be cracked. Please see this link for more information and how to have the touchscreen replaced for you.
If the unit keeps displaying a pop up window saying that it will be shutting down with a count down timer then the problem is a loose USB port that keeps interrupting power to the unit. The reason why you receive a battery low warning is because the battery doesn't have a chance to charge because of the intermittent USB port. We see this problem all of the time on the Nuvi 11xx, 12xx, 13xx, 14,, and 25xx. We've repaired hundreds. Please see this link on why the problem happens and how we repair this problem so that it won't happen again. SHARCNET USA Out of Warranty GPS Digital Camera Repair