Today only, until 9 pm ET, Pennywise.biz offers the PowerGenix NiZn 1.6-volt AA Rechargeable Battery 4-Pack
, model no. PGX-4AAZINC, for $4.99
plus one cent
for shipping. That's tied with our mention from last month and the lowest total price we could find by $11. These NiZn "green" batteries purportedly remain usable for up to 150 charges.