This model is advancement over the IM2505 ampere hour meter. It is provided with an additional totaliser which monitors the total charge and total discharge through the circuit. It also keeps a track of the total number of cycles of charge and discharge in a circuit. Very battery that is used in different applications has a definitive life cycle based upon the total number of charge and discharge cycles. So, this model enables our clients to keep a track of the life cycle of the battery.