SUNSUN AC/DC air pump (CP-100A/CP-200A)

SUNSUN AC/DC Rechargeable Aquarium Air Pump CP-100A / CP-200A

Keep your aquarium oxygenated even during a power outage with the SUNSUN CP Series AC/DC Rechargeable Air Pump. Designed for everyday aquarium aeration and emergency backup use, the CP-100A and CP-200A combine a built-in lithium battery, automatic power-outage activation, adjustable airflow and intermittent operating modes for reliable, energy-efficient performance.

When connected to mains power, the pump can operate as a regular aquarium air pump. If the electricity supply is interrupted, the automatic backup function switches the pump to battery power, helping maintain aeration when your fish need it most.

Key Features

AC/DC Dual Power Operation
Suitable for normal powered operation as well as rechargeable battery backup, making it ideal for both everyday use and unexpected power outages.

Automatic Power-Outage Backup
When external power is disconnected, the pump can automatically start using its internal battery to maintain aquarium aeration.

Long Battery Runtime
Multiple operating modes help balance airflow and battery consumption. Depending on model, airflow level and operating mode, runtime can reach up to 115 hours for CP-200A.

4 Adjustable Airflow Levels
Choose from 4 output levels according to your aquarium's aeration requirements while helping conserve battery power when maximum output is unnecessary.

Continuous & Intermittent Modes
Select continuous operation or one of the intermittent modes for longer battery runtime and flexible aeration.

Battery Level Indicator
Built-in indicator lights make it easy to monitor the remaining battery level at a glance.

Low-Noise Operation
Engineered to reduce operating noise, making the pump suitable for home aquariums, bedrooms, offices and other indoor environments.

USB Type-C Charging
Convenient Type-C charging provides greater flexibility when recharging the pump.

Ideal For

Suitable for freshwater and marine aquariums, fish tanks, shrimp tanks, temporary holding tanks and emergency aeration. The rechargeable design is particularly useful for power outages, aquarium maintenance and situations where a conventional power supply may be unavailable.

Installation

Connect the air tubing from the pump to a flow-control valve and check valve, then connect it to an air stone inside the aquarium. A check valve is recommended to help prevent aquarium water from flowing backwards toward the pump.

Available Models:
CP-100A – Single outlet, 1.5 L/min, 1500mAh battery
CP-200A – Dual outlet, 2 × 1.5 L/min, 4400mAh battery