Features: • Unique compact design • Safe charging • Two charging channels, can charge 1-2 pcs NiMH AA or AAA batteries Save money, safe charging and easy handling. The STANDARD range of GP Batteries PowerBanks offers an economical solution to charge in all batteries sizes. Whether you need to charge AAA, AA, C, D batteries, all GP Batteries PowerBanks are simple and convenient to use; just put in your batteries and leave it charging overnight. The automatic timer control guarantees a safe charging process after which you can take your charged batteries out when needed.