DeWalt DW9109 7.2-Volt to 18.0-Volt Pod Style Vehicle Plug In 1 Hour Battery Charger

I'm pleased with the purchase of this product because I can use it while I am going down the road and not fusing with getting out my plug in unit every time I get out on a job.

This is just what I needed to keep me going. I am often off-road and near no AC power source. But having 2 Optima Yellow Tops in my truck, DC charging is no problem. For field repairs, my tools include the Dewalt Gooseneck flashlight, Reciprocating Saw, Hammerdrill and Circular Saw. All run on the 18V XRP batteries. My old NiCad XRP's were on there last legs, so I also got the new NiMH 18V XRP batteries to power everything. Great purchases, all!

Product is durable and lives up to the Dewalt name that contractors expect. However, the product is a bit pricey, but you get what you pay for here, but the charger is perfect for contractors and maintenance personnel that work in sites where there is no power for a convential a/c powered charger. Caution!! don't use this charger more than twice at a time for your 18 volt batteries without starting your vehicle, otherwise you'll have to get a jump start.

This charger is great. I can charge my battery while out on the road, as I use my 18v Dewalt Vacuum quite a bit, and I need a strong charge. Excellent product.

One of the reviews here suggests using a modified sine wave inverter such as the Xantrex sold here at Amazon. If you read the inverter owner's manual or do a quick Internet search you will see that use of an AC Dewalt (and some other cordless tool chargers) together with a modified sine wave inverter will dramatically shorten the life of your charger. Don't do it.

As for this product, it works as advertised. Why only 3 stars? 2 reasons: A) At the current price this item really is overpriced for what you get; B)The (50% less costly) AC charger offers "Tune Up" mode, which extends battery life. But if you have no access to AC power this is the way to go.