diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
index 7d6be23..8f7505d 100644
--- a/drivers/acpi/battery.c
+++ b/drivers/acpi/battery.c
@@ -125,7 +125,7 @@
 		return POWER_SUPPLY_TECHNOLOGY_NiMH;
 	if (!strcasecmp("LION", battery->type))
 		return POWER_SUPPLY_TECHNOLOGY_LION;
-	if (!strcasecmp("LI-ION", battery->type))
+	if (!strncasecmp("LI-ION", battery->type, 6))
 		return POWER_SUPPLY_TECHNOLOGY_LION;
 	if (!strcasecmp("LiP", battery->type))
 		return POWER_SUPPLY_TECHNOLOGY_LIPO;