Added link to a good battery comparison.


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@1883 a1c6a512-1295-4272-9138-f99709370657
diff --git a/docs/BATTERY-FAQ b/docs/BATTERY-FAQ
index e33bde1..c1c57ef 100644
--- a/docs/BATTERY-FAQ
+++ b/docs/BATTERY-FAQ
@@ -59,7 +59,9 @@
     and I bought 4 of the same GP batteries for 20 euros in an home
     electronics & household appliance store in Finland.  NiMH batteries are
     sold in almost all shops that sell consumer electronics, and in many
-    online shops. Browse around.
+    online shops. Browse around. There's a pretty good comparison between
+    different battery makes and models at the digital imaging resource site:
+    http://www.imaging-resource.com/ACCS/BATTS/BATTS.HTM
 
 Q7: What kind of run-time can I expect on a set of fully-charged batteries
     when running Rockbox?