Chosen Solution
Hello Having searched the web for the P11PG7-02-NO1AYBA4 battery over many many months I eventually gave up my search. Then I came across a listing that claimed to be a replacement for the aforementioned battery. https://www.amazon.co.uk/3200mAh-Battery… . I was sceptical at first and then I thought why not try it, especially as the battery was keenly priced at £5.85. After a very short delivery time with amazon and disassembling the drive, which any DIYer could do, and inserting the new battery, hey presto, the drive works perfectly. The replacement battery is a 3200mAh 3.8V Battery for Samsung Galaxy Mega 6.3 i9200 i9205 i9208 (B700BC). I hope this helps.
I ordered a battery that claimed to be for the 1AYBA4. It was not. I eventually order this battery and it worked perfectly .https://www.amazon.com/gp/product/B00EL3…
Does the Seagate wireless work with the battery removed & using an external power source? My battery has expanded & I wonder if I can just use it with an external battery pack instead of soldering in a new battery.