The NEW GP Everyday USB Battery Charger comes with 4 x AA 2100mAh GP Recyko rechargeable batteries. The charger comes with a compact USB charger which is ideal for daily use and when travelling. This is a compact charger with smart safety and technical features that will allow you to charge up to four AA or AAA batteries at once. You can charge either 2 or 4 batteries at the same time. The new B421 Everyday USB Battery Charger will charge four AA 2100mAh 1.2v NiMH batteries in six hours via the USB connection. You will be able to view the charging progress through the LED indicator which displays the charging status. The LED indicator will also alert you if any single-use or bad batteries are inserted.