Loses its power over time
Takes a long time to charge
Review:
This battery came with my spyder and I like it because its easy to use and it saves money on buying batteries, the only bad thing is it loses its "umph" after alot of recharges, the manuel says it gives you around 1200 shots or more but after using it for a while I get around 800 shots, and it takes along time to recharge, around 12-14 hours,
Conclusion:
its a good battery, but I wouldn't go out and buy one, the only reason I use it is because it came with my marker, but at least it works