3.6 volt Lithium Batteries.

Apple part number 742-0011. High current battery for use in all Macs that use this style battery. These are fresh factory stock with current date codes. Only Saft has a stainless steel case to prevent equipment damage.Quantity 100 best price at $2.95 each.
 #1001-Quantity (price per each) 1-2@ $7, 3-9@ $4.75,  10-24@ $4.25,  25-49@ $3.50, 50 plus@$3.25

4.5 volt Alkaline Batteries.

With Velcro strips. Type 840 840-b 841.                               Apple part number 922-0750. 
Quantity 1-2@ $9,  3-9@ $7,  10+@ $4.75, 

#1005