See the easy installation in pictures (at your own risk of course). There are only four screws. Case opens to reveal existing battery. Clip back together, replace screws (don't tighten to far) and it's done.
eBay
New replacement battery for the 1st generation playstation 4 controller. This battery has a large connector to the motherboard. .
eBay
Also they have slightly grey thumbsticks. This battery has a small connector to the motherboard.
eBay
eBay
This battery has a large connector to the motherboard. Also they have slightly grey thumbsticksThe model number will be CUH-ZCT2. There is two generation available. 4-594-662-. 61F1, 22F2, 01G, 02G, 32G, 71F2, 03G.
eBay
eBay
New replacement battery for the 2nd generation Playstation 4 controller. This battery has a small connector to the motherboard. .
eBay
eBay