Dry Power 12V Lithium Battery 18AhPlease note this battery is not sold directly by us, this is merely a link to the battery wholesaler themselves. This battery is the battery we recommend and use for all our trommel setups. Not only is it light in weight but can run this unit continuously for approx 6 8 hours. Weight is always a factor to be considered when trekking kms down the creek to your secret spots. This battery is a direct plug and play unit when paired with our trommels.