Does this have a special chip so battery doesn't overcharge
1477349
The Garmin Nuvi GPSs have a built in protection circuit to prevent overcharging. The OEM charger chip I believe identifies that it is a charger. Non Garmin power cables sometimes allow the GPS to think that it is connected to a PC or other device and prevent the battery from charging.
2029376
no but if the battery is charged Too much it could break it by firing too fast . That's what happened to mine
2073481
No it does not but so far so good; it gets me through a ten hours graveyard shift without fail. I think you can order a spare and separate charger just for the battery at a reasonable price if you want.
540669
Hi Emerson, No, I haven't had that happen to me yet and I left it on there for 2 days. I forget it's on there. So, In my opinion, It will not overcharge the battery.
29032
yes it will not overcharge, once it drops below full charge it brings it back up. I have three of these and always leave them in with no problems
852854
I would suspect it does not have overcharge or float mode to protect from overcharging. There are several out there that are made specifically for maintaining a full charged 12 Volt wet cell battery for around $10 to $15. I use one by Cen-Tech for an old Jeep I have to keep the battery charged.
1232840
Basically, though it is not built in. I had an earlier model with a battery that came out to be charged. This battery looks almost the same but gets charged in the camera.
1015263
no it does not. plenty of power, however, these aftermarket batteries on this site suck & it is hard to get a replacement. I am stuck with 8 batteries that are no good. I will never order another
1489680
No, but the battery lasts a long time. Also, there is a key override feature.
1884298
No it does not. This was a terrible purchase, this battery does not last for two hours. I should have sent it back but I discarded my old one and now I am stuck!
628838
yes. The screen goes blank to save energy I believe. Simply tap the On switch to check the status of the charge.
440393
It may overcharge your battery though not likely.It does have a bypass diode which is only useful when connecting multiple panel in series. The diode has nothing to do with overcharge protection.You should consider adding a diode in series with the + lead to prevent leakage at night. Again this will have no effect on overcharge.It may be easier to add a charge controller.
1544435
not that i know about. however the battery last very long.it goes a few days before i have to plug it up
1313992
Mine did not, though the box said it was supposed. Had to send it back because customer service said they wouldn't send out the battery alone.
1540729
Yes. Two small battery AAA only to keep the programs memory when it is not connected 12 VDC.
1553523
It would eventually charge it, I wouldn't leave it on any battery indefinitely though as it has no automatic mechanism that will prevent overcharge.
1331675
With any electronic device you can't over charge it. You have to do what's called cycling the battery. Charge to a hundred then run down to 15 or 10 percent. Over charging the lithium ion could damage or even destroy the powercell. I use the same product and it lasts me all day and some times into the next