Lithium-ion Batteries: Preserving Service Lifetime


Although I disagree with the author's comment about leaving older technology batteries like NiCD on their chargers (that's what causes the misnamed "Memory Effect" which was actually the result of drying out the electrolyte by overcharging), the bulk of the article is on point, especially as it pertains to today's Lithium-ion batteries.

When you near the end, where he discloses what initiated his battery's failure, you'll see why I've shared it here.

Heat will do it every time.

Always left my c330 in the car, battery lasted about a year. Next GPS (nuvi855) was purchased because with removable battery. Never left it in the car, but still had to replace it after several years. At leas the replacement was easy!

Nuvi 350

I've got a Nuvi 350 for god-knows how many years. I still have the original battery in it. I do not keep it in the car where it would overheat during the summer months. I charge it when needed only. Best damned piece of electronics I've ever purchased!



My 855 is 8 years old and the battery still works fine. It never had a super long length though.

Since the 855 continues to run even when it is 'OFF,' I disable the battery with a small piece of paper over the contacts whenever I am not using it for more than a day. I rarely left it in my car which no doubt helps the batteries last longer. I also use a vent mount which keeps it cool during operation, in contrast to baking in the sun with a windshield mount.

Dash Cams are known for eating batteries very quickly due to extreme heat by the windshield glass. The alternative is to use a model with a capacitor which can keep a shorter charge, but is less sensitive to heat destroying batteries.

I bought a Nuvi 760 6 years

I bought a Nuvi 760 6 years ago (I think) and it still uses the same original battery that it came with.

I drove to Salt Lake City, UT in December 2012. The trip took at least 4 hours (from St. George, UT ) during which Nuvi stays plugged in to the car charger. When I got to SLC, a few minutes after unplugging Nuvi from the charger, it shows "low battery".

I thought the battery has reached its useful life and needs to be replaced. I was wrong. I'm still using the same battery today and it works fine. I think my Nuvi 760 is not used to the cold weather in SLC. It was around 25+ F that night and that is freezing cold for Southern Californians. Cold weather seems to kill battery quicker. My car battery needs a replacement a year after that trip.

More info concerning batteries

Nüvi 255WT with nüMaps Lifetime North America born on 602117815 / Nüvi 3597LMTHD born on 805972514 / I love Friday’s except when I’m on holidays ~ canuk

Don't Need the Battery

I have never used my GPS running only on battery power - I've always plugged it into the cigarette lighter outlet (says a former smoker). We don't really use the GPS on short trips, so it's usually running for a minimum of 2 -3 hours.

I would probably hardwire it in but we have two cars.

Is there any real problem with keeping the GPS plugged in when using it?


The nuvi series (especially the newer models) have a relatively short battery life. They are designed to be used while plugged in to a power adapter.

Alan - Android Auto, DriveLuxe 51LMT-S, DriveLuxe 50LMTHD, Nuvi 3597LMTHD, Oregon 550T, Nuvi 855, Nuvi 755T, Lowrance Endura Sierra, Bosch Nyon