References.asciidoc

@@ -8,3 +8,6 @@ http://batteryuniversity.com/[Battery University]::
 Excellent resource on battery technologies. Lots of clear, useful explanations
 of their performance characteristics and tradeoffs.
 
+https://www.batterysharks.com//Articles.asp?ID=258[Battery Buying Guide]::
+Good diagrams of battery terinal types, of which there are many.  Some
+useful explanations of terms for different battery types.