Yeah forms from job centres send off sickline with it.
Payments can be a bit eratic but you eventually get it.keer an eye on bank account to check
Simple you paid your taxes so claim
a few weeks without using the batteries in my oppinion wont effect the performance off any off them if it gets to 2 or 3 months then run them for a few mins under load and charge the flat ones
and on the benefits if your income including your partners is more than about £150 you wont get any help although if you have kids you may
go to gov uk and you will find al you need to know