I have tried all the afore mentioned potential solutions to recharge my BBPB. The only solution that worked for my BBPB was to get the BBPB Rapid charge adapter. It is the one with the magnet connector. Turn the BBPB Off. Connect the Rapdid charge cable for about 20 seconds. Disconnect. Count about 10 seconds. Repeat the previous steps until the battery symbol that should be displayed on screen indicates it is increasing and starting to charge at a higher level than where the battery charge was stuck at. Mine was stuck at 5% which was too low for the BBPB to be able to download the BBPB udate software which should fix the battery charging issue. My BBPB required a minimum 21% charge. When it reached this level the BBPB software popped up indicating there was sufficient charge to begin the software update. I selected No and allowed the Rapid charge to complete to 100% which took about 30-60 minutes. Then I started the BBPB and went into Settings and started the software update process. It completed successfully and restared on its own successfully. I haven't had to use the Rapid charger since. The regular trickle charge mini wall plug adapter has worked perfectly everytime. If you don't have the Rapid charger in your BBPB kit you can buy online either at BB or Amazon etc for about $25. Keep in mind if the batteries in the BBPB (there are 2 large gelpaks)are damaged no amount of recharging will fix the problem.