Newegg offers the Fujitsu Ni-MH Battery Charger Kit with 4-Pack of AA 2000mAh Rechargeable Batteries for $19.99. Coupon code "EMCRFCD53" cuts it to $9.99. Plus $4.98 for shipping, that's $10 off and the lowest price we could find. It features eight hour shut-off timer and full charge time of 6 hours. Deal ends May 29.
Looking for an even stronger deal? Add two kits to your cart and apply the same code to score both sets for $19.98 with free shipping ($10/kit).