Battery connector busted after replacement.

1st time Mess up… replaced my battery on iPad Air and now it won’t charge, everything works fine bar the charging.

if I plug cable in and the iPad is off it boots up like it has recognised but then won’t charge.

i think I have messed up the pins in the battery connector (see pic) the 2nd pin in looks shorter?

is there any way around this or and suggestions on a fix?

many thanks in advance (I know stupid mistake)