the first prius i got had a 50 kw 12 ah batt out put current was at full accelarator 120 amp from battery with battery temp at 115 deg f. but my 06 will not put out but 67 amp and the reserve minits is only 6ah so thay reprogram the computer to limit curent by battery temp cooling fan came on all the time. but with new program cut's current before battery temp senser turns on cooling fan.