Yes. Since rechargeable batteries normally have a voltage of just 1.3 V instead of the AAA batteries’ 1.5 V, the measurement cycles will be reduced. Additionally, the discharging characteristics are completely different, therefore it must also be remembered that when the battery icon appears the minimum safety buffer of 50 measurements can no longer be -guaranteed. In addition, we do not have any control over the quality of the rechargeable batteries nor the recharger.