Rechargeable batteries are an efficient, economical way to power your home’s battery-operated devices. When your rechargeable batteries are low, simply place them in your charger and they’ll be ready to go again in just a few hours.

If you use so many gadgets that you need a supply of rechargeable batteries, here are the best devices to keep them charged.

The Energizer Recharge Pro battery charger supports AA batteries and the smaller AAA size. To use, simply place your batteries in the charger, plug them into a wall outlet, and wait approximately three to five hours for the depleted batteries to fully charge. Charging automatically stops when the batteries are full to prevent overcharging, which can damage your batteries and shorten their lifespan.

The Recharge Pro also provides quick updates on the charge status of your batteries via a set of indicator lights on the front. Red means charging has started; yellow means it’s halfway through; and green means charging is full. You’ll also hear beeps when charging stops and starts, or if the charger detects an issue with the battery.