Battery for CX2 - dead?

[Cralis]

Hi guys.

I'm finding I am very low on power on my CX2 after around 20-30 flights. Mainly on a turn, it loses power and drops a lot, and it battles to regain the power for a few seconds, with the throttle at full... It seems I also lose power more frequently after around 4 minutes. I charge the packs, and have around 50% left in them...

Is my battery dying?

Can anyone recommend a replacement that will fit out of the box, connectors and all?

[carlo_the_wonder_frog]

The only battery that will fit with no mods and has the same balance connector is the Common Sense RC 800 mah battery, FlightPower makes a 800mah battery that will fit also, but it has a different balance connector. I use a Thunder Power 910 mah that I tape to th bottom, it uses a different balance connector than the stock one.

[IBFLYING]

Carlo, SMC also makes one that fits, it is much higher C rating than both eflite and common sense.. But it does coct more!