NeweggFlash offers the Battery Tender Junior 12-volt 0.75-amp High Efficiency Battery Charger/Maintainer, model no. 022-0192, for $19.99 with free shipping. That's tied with our mention from three weeks ago and the lowest total price we've seen. (It's the best now by $8.) It's spark-proof and features a 4-step charging program. Deal ends January 26.