Over all, great batteries. They only get12 minutes of run time in my Losi Super Baja Rey 2.0 though. I'll let that slide because it is such a large, fast car and I was full throttle 90% of the time in grass.
When I go to change the batteries it seems one cell on one of the batteries is a little lazy. When I take them out of the truck it reads 3.2v-3.2v-3.1v-2.8v. The other battery is fine. But for the lazy battery... my charger still charges it still so I can't complain.
The batteries are higher MaH than advertised. My charger capped at 8000 mah. I checked the batteries voltage and it still had .8 volts till full charge. I put them back on the charger and it put another 250mah into it before stopping.
Overall, would recommend these batteries.