If you noticed, the Tenergy pack with DC connectors is marked as a sale price. I suspect there aren't as many people who need packs with DC connectors, they aren't used on a lot of devices. Who knows whether all-battery will re-order packs with DC connectors once their present stock is depleted. Their specs are good. http://www.tenergybattery.com/index....mart&Itemid=27
I've put an order in for one to have as a back up. I think it will work fine. It's probably better than the no-name batteries in the MS packs.