Cold temp affect battery?

That's funny because I have a 760 and the same thing happened. I brought it inside and warmed it up and it works perfectly now. However, it didn't seem to affect my battery. Just affected the response time to getting a signal.

I am very tempermental too, when I am cold hahaha.

A good rule of thumb is to never charge a Li-Ion battery when its temperature is below 32°F. Allow the unit to warm up to room temp (or warmed car temp) before plugging it in.

PT

Cold will definitely affect any type of batteries performance whether its your car battery or any electronics you may have in your car. The cold will lower the milliamp hours the battery can hold as a charge. It’s best to bring the units into the house if the weather is cold outside. Another problem is the unit sweating when you bring it into the house. If the unit is sweating don’t turn it on until all moisture has evaporated off the unit, it could cause a short inside the unit.

From experience with laptops left in cold weather, not only will cold temperatures negatively affect the Li battery, it also will affect the LCD screen display. LCD's do stop working at certain low temperatures although I would have to do some research to tell you what temp. They generally will perform fine once warmed up again.

Cold does in fact affect battery performance therefore will affect the entire unit. Each model has it's own board design, therefore expect different models to behave differently when the unit is cold.

Reference please ?

I have a couple of devices that specifically say to use Li-I batteries for cold service.....down to -20F if I remember correctly.

As for losing the charge after a week of no use, that could mean your battery is nearing the end of it's useful life........or it could be normal.

Many units go into "standby" unless you hold the button down to force a complete power off. Standby doesn't use much power but it DOES use some.

Yes, many Li-ion batteries can be USED down into the minus temperatures. However I was specifically referencing CHARGING.

Here is one reference...

Electronic Design News...
http://www.edn.com/blog/1470000147/post/940006494.html

PT

Thank you!
The reference you sited, like a lot of things "on the net" looked a little shaky but it did LEAD to a solid reference, that says they should NOT be recharged below 0 C/ 32F.

I'm surprised that this is not widely known and/or stated in the equipment manuals.

Yet ANOTHER good reason not to leave your GPS, cell phone, etc. in the car overnight !!

Well to be fair, it does specifically talk about consumer grade Li-Ion batteries and in particular the cheap Chinese knock offs. So it can not probably be state for all Li-Ion technology. But certainly something to keep in mind.

Shouldn't be a big deal for most people since rarely would you need to change your batteries in freezing weather and really the main place that might happens is if you leave them in a car, plugged in, where the cig lighter is not tied to the ignition and is on all the time.

PT