Originally Posted by Simon A
I would get some GP4300's.
From my experiences (and others) GP cells are better and they have a larger capacity than the IB4200's.
Interesting comment.... I match batteries and from my experience with IB4200 and GP4300 cells, the GP4300 have about 30 secs LESS runtime than the IB4200 cells. And the same applies between the GP3700 and the IB3800 cells.