I have 12 solar mushroom lights in the yard. 7 of them won't come on anymore. If I remove the battery then put it back in the slot the LED comes ON for 2 seconds then goes OFF. Every time I pull out the battery and put it back in the LED comes ON for 2 seconds then goes off. Contacts look like brand new so I sanded them anyway. Checked the battery and it is fully charged. Swapped the battery and still I have the same problem LED stays ON for only 2 seconds. All 7 lights have the same problem.
Anyone know how to fix these?
Anyone know how to fix these?