hyperbeamer
Member
Some of the keys cannot be opened easily. Some are fixed - u can call up Performance and they will let you know if your battery can be changed easily or not. If it cannot be, like for the 7 series E65 / E66 which has a rechargeable battery - you will have to cut the key open.
The 7 series uses the rechargeable Panasonic VL2020. You can buy this battery at Sim Lim Square or Sim Lim Tower (Kim Chew) and ask the shop to solder for you. Cost will be less than 30 dollars.... which is better than buying a new key fob which costs 500 from Performance.
There are some articles online on this issue.
View attachment 66716
Basically, I used a blade to cut it open and use Gorilla Glue from Giant to glue it back. It takes an extended drive to charge the battery. You have to be careful and wear gloves to not cut yourself
The 7 series uses the rechargeable Panasonic VL2020. You can buy this battery at Sim Lim Square or Sim Lim Tower (Kim Chew) and ask the shop to solder for you. Cost will be less than 30 dollars.... which is better than buying a new key fob which costs 500 from Performance.
There are some articles online on this issue.
View attachment 66716
Basically, I used a blade to cut it open and use Gorilla Glue from Giant to glue it back. It takes an extended drive to charge the battery. You have to be careful and wear gloves to not cut yourself