diff --git a/drivers/power/olpc_battery.c b/drivers/power/olpc_battery.c
index 9dd1589..32570af 100644
--- a/drivers/power/olpc_battery.c
+++ b/drivers/power/olpc_battery.c
@@ -19,7 +19,7 @@
 
 #define EC_BAT_VOLTAGE	0x10	/* uint16_t,	*9.76/32,    mV   */
 #define EC_BAT_CURRENT	0x11	/* int16_t,	*15.625/120, mA   */
-#define EC_BAT_ACR	0x12	/* int16_t,	*416.7,      µAh  */
+#define EC_BAT_ACR	0x12	/* int16_t,	*6250/15,    µAh  */
 #define EC_BAT_TEMP	0x13	/* uint16_t,	*100/256,   °C  */
 #define EC_AMB_TEMP	0x14	/* uint16_t,	*100/256,   °C  */
 #define EC_BAT_STATUS	0x15	/* uint8_t,	bitmask */
@@ -295,7 +295,7 @@
 			return ret;
 
 		ec_word = be16_to_cpu(ec_word);
-		val->intval = ec_word * 4167 / 10;
+		val->intval = ec_word * 6250 / 15;
 		break;
 	case POWER_SUPPLY_PROP_SERIAL_NUMBER:
 		ret = olpc_ec_cmd(EC_BAT_SERIAL, NULL, 0, (void *)&ser_buf, 8);