diff --git a/Cad/little_john/part_numbers.txt b/Cad/little_john/part_numbers.txt
index f11a105..4d84725 100644
--- a/Cad/little_john/part_numbers.txt
+++ b/Cad/little_john/part_numbers.txt
@@ -20,5 +20,6 @@ Off-the-shelf parts:
 Description:			Qty:	Part number:	Reference:
 Drive motor			2	PE604		MY1020 24V800W
 Weapon motor			2	PE603		Prodrive V2 50-60
-Battery				4	PE602 		LiPo 5Ah 4S 60C
+Battery	(weapon)		2	PE602 		LiPo 5Ah 4S 60C
+Battery (drive)         1   PE605
 Speed controller		1	PE601
\ No newline at end of file
--
libgit2 0.21.2