Zumo 390 charging fault fixed

demandcurve

Registered User
#1
My Garmin Zumo is 18 months old. A couple of weeks ago it developed a charging fault in that the charging became intermittant.

This was no small thing because the Garmin didn't flick between battery & charging mode but instead rebooted itself - every few minutes. After self restart the route had to be reloaded. That was best result, sometimes the Garmin just froze and needed removal and a long Off button push to work at all.

After reading of similar problems on the 390 & other Garmins with two-pin charge connections I bought & fitted a new in-cradle power cable. Success! Since covered 2k miles and Zumo is working like a charm again.

Seems the 2-pin bike power cable is a bit fragile so if yours starts going on/off charge don't mess with the unit itself until you tried a new power cable for the bike cradle. Affects the Zumo 3xx range and, apparently, one other model w/ same (2 pin) charge cable.

Tony
 

JZH

VFR Club Bodger
#2
The battery on my Zumo 590 failed a while ago. Garmin confirmed that I need a new ?40 battery... WTF? For the record, it works just fine when plugged into the bike/car, so I haven't bothered to buy a new battery.

Ciao,
 

edderby

Registered User
#3
My Garmin Zumo is 18 months old. A couple of weeks ago it developed a charging fault in that the charging became intermittant.

This was no small thing because the Garmin didn't flick between battery & charging mode but instead rebooted itself - every few minutes. After self restart the route had to be reloaded. That was best result, sometimes the Garmin just froze and needed removal and a long Off button push to work at all.

After reading of similar problems on the 390 & other Garmins with two-pin charge connections I bought & fitted a new in-cradle power cable. Success! Since covered 2k miles and Zumo is working like a charm again.

Seems the 2-pin bike power cable is a bit fragile so if yours starts going on/off charge don't mess with the unit itself until you tried a new power cable for the bike cradle. Affects the Zumo 3xx range and, apparently, one other model w/ same (2 pin) charge cable.

Tony
Had exactly the same issue myself. New lead was about £35. but fixed the problem.
 

edderby

Registered User
#4
My Garmin Zumo is 18 months old. A couple of weeks ago it developed a charging fault in that the charging became intermittant.

This was no small thing because the Garmin didn't flick between battery & charging mode but instead rebooted itself - every few minutes. After self restart the route had to be reloaded. That was best result, sometimes the Garmin just froze and needed removal and a long Off button push to work at all.

After reading of similar problems on the 390 & other Garmins with two-pin charge connections I bought & fitted a new in-cradle power cable. Success! Since covered 2k miles and Zumo is working like a charm again.

Seems the 2-pin bike power cable is a bit fragile so if yours starts going on/off charge don't mess with the unit itself until you tried a new power cable for the bike cradle. Affects the Zumo 3xx range and, apparently, one other model w/ same (2 pin) charge cable.

Tony
Had exactly the same issue myself. New lead was about ?35. but fixed the problem.
 

PAD

Registered User
Site Sponsor
#5
I had a problem with one of the contacts on one of my cradle cables a while back. One of the sprung pins was stuck down and not making contact. On inspection, the surrounding 'collar', for want of a better word, was slightly damaged (I don't know how). A bit of fettling and a dab of WD40 had it up and running again. Any idea what the problem was with your cables demandcurve & edderby?
 

JZH

VFR Club Bodger
#6
I had a problem with one of the contacts on one of my cradle cables a while back. One of the sprung pins was stuck down and not making contact. On inspection, the surrounding 'collar', for want of a better word, was slightly damaged (I don't know how). A bit of fettling and a dab of WD40 had it up and running again. Any idea what the problem was with your cables demandcurve & edderby?
They're called "pogo pins", a 40-year old technology. :)

Ciao,
 

edderby

Registered User
#8
They're called "pogo pins", a 40-year old technology. :)

Ciao,
Not sure what was wrong with mine, but it suffered from an overnight deluge when parked outside in Switzerland. Since then it kept stopping charging about every 10 minutes and I had to keep wiggling the sat nav unit to get the charging going again whilst riding along - not the safest option...
 
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