Thanks for the your reply, I will check it after removing the excess plastic, for now my comments are as follows The arrows should be marked more clearly possibly with whiter in as with the hood fitted it is dark inside the helmetIt is very unlikely the customer will use a mobile phone pin to remove the battery, the use is a welder he carries hammer and large screwdriver so you need to consider how to make this suitable for that environment, normally for other brands you can tip the helmet on its side and the battery comes out, but with yours it is very tight in the hole why?