help with this battery,,,urnigy 1600mAh 2S 20C Lipo Pack (Losi Mini Compatible) (AR Warehouse)

i have tried 2 times to get help,,, please help me out,,,, i ordered 4 batterys and one came in with a very small connector and lead wires. this is the battery i am talking about... turnigy 1600mAh 2S 20C Lipo Pack (Losi Mini Compatible) (AR Warehouse) i did not see that it had a different connector or small power wires. i am new to this hobby.. r/c airplanes and made my first battery order and got this one by mistake.
can i use it like it is ,,??? if i change the connector ??? will the small power wires be o.k. ??? or can i change them out ?? by removing the small wires from the battery and replace with bigger wires like the other battery s ?? can you change out the wires coming out of the battery ??? i have no experience with these battery's ???? i did not see that this battery had a small connector not like the others. that part i can fix .. just cut off and put on the right one. the size of the wires is what i am concerned about...
help please. i have ask hobby king and they will not answer...

i ask do i need to return it for another one and no answer.

i would just like to fix it or will it work for my planes. i am going to use it on the flight test trainers, scratch builds ft flyer,, nutball and delta wing . the 3 trainers they sell and give planes for.. please help DAN