Dewalt DCB609 20V/60V MAX FLEXVOLT 9 Ah Lithium-Ion Battery

They work well and last a long time.

I recently purchased the DEWALT FLEXVOLT 20V/60V MAX 9.0-Ah Batteries (DCB609-2) and have been thoroughly impressed with their performance. This two-pack set is a game-changer for anyone using DEWALT’s 20V, 60V, or even 120V MAX tools.#### Performance and VersatilityThese batteries feature innovative dual-voltage technology, automatically switching between 20V and 60V, depending on the tool. This makes them incredibly versatile, compatible with a wide range of DEWALT tools. In 20V tools, they offer up to **6 times the runtime** compared to standard 1.5 Ah batteries, making them perfect for extended projects without frequent recharges​:citation[oaicite:8]{index=8}​​:citation[oaicite:7]{index=7}​.#### Power and RuntimeEach battery has a substantial **9.0-Ah capacity**, providing ample power for high-demand tools. I used these with my cordless circular saw and was able to tackle tough, high-load applications without any hiccups. The runtime is impressive; during a recent project involving extensive cutting, a single charge lasted all day, which significantly boosted my productivity​:citation[oaicite:6]{index=6}​​:citation[oaicite:5]{index=5}​.#### Design and FeaturesThese batteries come with an LED state-of-charge indicator, allowing me to quickly check the battery levels at a glance. This feature helps avoid unexpected interruptions during work, ensuring I can plan recharges during natural breaks in my projects​:citation[oaicite:4]{index=4}​. The batteries also run cooler compared to similar high-capacity models from competitors, reducing the risk of overheating during intense tasks​:citation[oaicite:3]{index=3}​.#### Durability and WarrantyThe build quality is robust, typical of DEWALT’s standards. They feel solid and well-made, capable of withstanding the rigors of a busy job site. Additionally, the batteries are covered by a **3-year limited warranty**, along with a 1-year free service agreement and a 90-day satisfaction guarantee, giving me peace of mind regarding my investment​:citation[oaicite:2]{index=2}​​:citation[oaicite:1]{index=1}​.#### CompatibilityThe batteries are compatible with all DEWALT chargers that support 20V/60V, making them easy to integrate into my existing setup. I use the DCB107 charger, and it works perfectly with these batteries, ensuring quick and efficient charging​:citation[oaicite:0]{index=0}​.#### Final ThoughtsOverall, the DEWALT FLEXVOLT 20V/60V MAX 9.0-Ah Batteries (DCB609-2) are a fantastic addition to any DEWALT toolset. They offer outstanding power, flexibility, and reliability, ideal for both DIY enthusiasts and professional contractors. Whether you're cutting through thick lumber or powering up a heavy-duty leaf blower, these batteries will not disappoint. Highly recommended for those who demand the best from their cordless tools.

Great battery!

Expensive but worth it. Definitely recommend getting the 4 port fast charger. Using a standard charger will take all day.

I have a few of the 20V tools from DeWalt and there are 2 of them that I use frequently on my job site. I was using a 5Ah battery on those 2 tools and for the most part the battery held a charge long enough for me to use the tools for a few days on the job site before needing to charge that 5 Ah battery pack. I decided to go the route on picking up these Flex Volt packs knowing that they will work on pretty much all of my 20V tools I have from DeWalt and eventually will get into some of the 60V FlexVolt tools. I use these 2 battery packs on the 2 tools I use regularly and knew that they would run much longer before I need to charge up these packs. Yes they are much larger than the 5Ah batteries and I can feel a weight difference but the pros outweigh the cons by a LOOOOOOOONG shot. I even noticed a slight power increase with one of the tools that I use by using the FlexVolt battery over the 5Ah battery, even though the tool is only drawing 20V, it has much more amperes at its disposal to run stronger while I am using the FlexVolt batteries on it. (Not all of DeWalt Tools will perform better with FlexVolt batteries. Most will still have the same performance specs as if you were running a smaller battery pack on them.)Simply put, You can not go wrong with DEWALT! The right tools for the right job!"TAKE ADVANGE OF MORE POWER" --DeWalt

I bought the Dewalt brand batteries after trying cheaper knock offs. I had problems charging the knock-off and found they weren't backwards compatible with my 20v tools. The cheap ones only worked on 60V tools. These work on 20v and 60v, charge perfectly and last fairly well on my 60v Dewalt saw. Sometimes you just have to bite the bullet so you can work without problems. This was one of those times. Hopefully they last for many years like the other Dewalt batteries I own have.

Our Fire Dept. uses Dewalt power tools and extrication tools use Dewalt batteries. These work really well. We always keep backups.

Excellent batteries.