Not used for 9 months. now won't charge

I didn't use my Playbook for 9 months. A week ago I wanted to use an app on it. I booted the Playbook up and the battery was showing 6% charge. I now know I should have switched it off and charged it but I used it until the battery died. I thought if the battery was still holding charge it was ok.

The battery will no longer charge. I have so far spent a total of 6 or 7 hours over 3 nights trying to stack charge it without success. I also tried a factory reset while plugged into my PC. On the rare occasion when it starts up while connected to either my original charger or my rapid charging dock I either get an error message saying that the reset cannot continue until the battery reaches 20%.

When left on the charging dock it sometimes attempts to start itself. I get the boot up screen for 20 seconds or so and then I get either a screen saying I should charge the battery or the battery charging symbol and then it switches off again.

Should I replace the battery or is there anything else I can try?

This has happened to me as well. I left mine on charge for about 3 days and it worked. Good luck

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