The CSI 100-24V24AH-AA-PEL is a compact, portable inverter with built-in battery bank and charger. It is designed for operation in field-environments. The output is a pure sine-wave voltage suitable for delicate test equipment and similar loads. The charger section operates from all typical AC voltages worldwide, and provides 27.6V float voltage. It was designed for slow recharging of the battery and does not have sufficient capacity for a continuous on-line UPS application at full output load. For continuous on-line operation, a custom version with higher charger capacity is available. The built-in charger can be kept on standby mode indefinitely and the continuous float voltage maintains the battery.