Looking for a reputable 12 cell for m4400

Id prefer not to have the slice as Id like to have the cooling system not be blocked and I refuse to buy no name brands.

 

While I don't know of a particular reputable brand, I would suggest avoiding AGPTEK. I bought a 12-cell AGPTEK battery, and it had two big issues:
- It only turned out to have slightly higher capacity than the 9-Cell
- It lost 11% of its charge capacity after the first few cycles, and I couldn't re-condition the capacity back into it.

I ended up sending it back.

 

I might just end up with a batteries+ 9 cell. The dell 9 cell is 150 and the slightly lesser batteries+ is like 120ish. I guess we will see.