Question

[dograncher01]

Hi I'm wondering about battery mah my Trex 600 esp takes a 7.4 v 1900 mah 18c lips to run the electronics and servos but these batteries are hard to find can I use a battery with the same voltage but higher mah say 2200 mah will it harm my external bec?

[ClaudioC]

as long as voltage is the same and the discharge rate times the battery Amperage is higher than the original it will work just fine.

[ultrataco]

Originally Posted by dograncher01

Hi I'm wondering about battery mah my Trex 600 esp takes a 7.4 v 1900 mah 18c lips to run the electronics and servos but these batteries are hard to find can I use a battery with the same voltage but higher mah say 2200 mah will it harm my external bec?

yes, if it will fit. I don't know anything about the Trex 600, but if it can use a 2S (7.4v) pack for electronics, then any 2S pack will work as long as it fits on the heli and has the correct connector. More mah (usually) means a bigger pack. Some may come with different connectors so just look out for that. I think most rx packs come with JST.

[Waxxingibbous]

Keep your voltage at 7.4, mah will only effect center of gravity because the battery will weigh more. It will give you longer flight time.