battery health

  1. VinceJS

    Where can I get a replacement Note 4 battery?

    I've tried many places but no one seems to have stock. Any suggestions where else I can look for a replacement battery for my Samsung Galaxy Note 4 model SM-910F? Don't care if it is original or not, NFC not important, just needs to be 3220mAh or more, anything that lasts longer than my old...
  2. D

    Solar PV system advice

    Anyone got any experience with "deep cycle" batteries used in stand alone solar PV systems? I've recently installed 2 x 300watt panels on my roof which feed through a 30A charge controller into a 24V/300AH battery bank. A 1200watt inverter draws current directly off the batteries, not...