Zumo User Forums

Thank you for your response. I think T6 maybe a little large for the 390 but I appreciate your help as it gives me a guideline. The screws on the 390 are held in deep wells on the back so it is difficult to see actual size. It will be a case of trial & error.

Thank you for taking the trouble to respond. I will investigate eBay & Amazon but having had a quick look, the lower T sizes (1-5) are harder to find.

After many months of my Garmin Zumo 390LM not holding charge but only works with USB cable attached, I searched internet for a solution. It constantly tells me 'Battery is low'. It seems there are a great number of users that have this issue with some having replaced the battery but still ...