Maynard instruments & controls manufactures battery charging and discharging monitor. The monitors can indicate the state of charge/ discharge of batteries and helps in correct assessing the condition of batteries. The monitors are provided with technical specifications like automatic battery charging and discharging; continuously monitor the current flow and out of batteries and displays current, voltage, ampere-hour and time. The battery charging and discharging monitors are available with advantages like power saving; avoids battery damage; correct evaluation of batteries; and reduces emission of acid fumes in work area over the other conventional monitors.