Whether using a Varta or Phone battery, the solution I found to future worries about leaks was the following:
(1) Find a small plastic medicine bottle that the battery fits into. (*See size constraint for A3000).
(2) Attach new leads, approximately 18" long to the motherboard. (I've used flat speaker with, the type with a stripe on one lead. The striped wired is connected on the + side of the motherboard.)
(2a) A2000- Run lead along front edge of motherboard. Then along side edge. Bring lead up at front of PSU. This avoid problems with risers, processors, and allows removal of anything later on, as needed.
(2b) 32000- Run lead along back edge of motherboard. Bring lead up thru cabling access near front of PSU. This avoid problems with risers, processors, etc. The bottle needs to be small enough fit thru the cabling access to allows removal of anything later on, as needed.
(3) Hot glue the leads along the motherboard (3-4 spots does nicely).
(4) Attach lead to battery. Notch bottle to allow leads. Put battery in bottle. Apply cap to bottle. Secure upright, with plastic tie.
