Batterie lithium-ion, Flexvolt, 9 Ah, 20/60 V

Appears to be high quality but was a little disappointed how long it took to deliver following order placement. Also seems to discharge more quickly than expected when using it on my 20V Blower vs my 60V Weed Trimmer. I would have expected the opposite.

[This review was collected as part of a promotion.] This Flexvolt 9Ah battery blew me away. Typically I can get about 19 8 foot rip cuts on my Dewalt track saw with my old 6Ah Flexvolt battery before the battery goes down to 1 bar on the indicator. I rip cut 3/4 Melamine almost daily for my jobs. For the last 3 days, I've used the new Flexvolt 9Ah battery exclusively. And surprise surprise, i'm averaging 18 8 foot rip cuts between per 4x8 panel, and i'm still getting full battery indicator. To date, this battery has been able to handle 5 to 6 sheet sheets of Melamine panels at 18 full length cuts before the battery goes down to 1 bar. Just wow. I can only imagine how long this beast will last on my XR drills/drivers (testing this soon). The 9Ah is about 25 percent larger in volume compared to my old 6Ah Flexvolt, so goes for weight. Build quality is typical Dewalt, which is to say great, stout and professional in mind. At roughly 30 dollar more for the 9Ah from the 6Ah, I see this as a no-brainer for what I do and need on my job sites. Now on to the 12Ah Flexvolt battery...

[This review was collected as part of a promotion.] I purchased 60v leaf blower with 9h battery. Charged battery according to instructions. Used the blower 12 minutes and battery died. Tool works great but I need it to last longer than 12 minutes I will be returning no use to me

Purchased 60V chainsaw in Dec 2019 but have primarily been using battery with 60V axial blower that was purchased in June 2020. Runtime was initially 20-25min but has degraded to 2-3min. Very disappointed in battery longevity.

[This review was collected as part of a promotion.] I ended up with two of these after purchasing the blower and string trimmer. I swapped them over with the 6.0ah from my angle grinders. Longer run times on the grinders makes me more money. Can’t wait to get a few of the 12.0!

I have 4 of these and it is PAINFUL to snap them in ALL my DeWalt Tools. Totally sucks. I wish I never spent the money, and I need them because ALL my tools are Dewalt, and I am a carpenter by trade.

Two of these came with a leaf blower and chainsaw combo in bought about a month ago. I used it with the leaf blower. Battery was completed discharged after 20 minutes of use. I would stay away.

Works great for the 60v tools I have. It says its compatible with all 20v max tools but it burned up the triggers on my 20v max drill and impact. I wouldn't recommend using these on 20v max tools.

I've had these batteries 2 of the 6ah for about months now and they haven't loss any power after full charge. These are amazing and it makes my jobs easier and that's important when time is money.

Purchased a weed trimmer, battery lasted 15 minutes with a “full charge.” I’d like to just exchange the battery but apparently I need to box it all up to ship to CA. Very disappointed.

Same as most of the other 1 star reviews. Charger reads full charge, battery only shows 1 bar. Battery will not take a charge. Would rate 0 stars if I could. Battery is terrible.

Bought a 60v string trimmer with this battery and it discharges within minutes on low, absolute poor performance right out of the box, and after an overnight charge.

im a busy homeowner and i abuse this battery with so many dewalt tools I have, I been having it for 2 years and still going strong. I'm very happy with it.

Two of my 60v batteries lasted less than a year for such a expensive battery that sucks. I have never had a problem with 20v stuff just the flex batteries

Used a couple time and it quit working and charging. One light on the indicator. Seems to be a common issue. When it worked, it worked great. China

We got 8 if these 60 volt 9/ah batteries and after one week and one charge one will not charge back up. Only reason for the 3 star rating.

I used this tool about 4 times and the battery is dead,service center said I missed the warranty date by a month.

Battery has been cycled 3 times. Will no longer hold charge. After full recharge, indicator shows only 1 bar.

This drill and battery is so powerful it make my jobs very easy I brought 2 one for myself and one for my son

I own more than 4 of these batteries and love it!!! Everything I owned is Dewalt, so it’s a no-brainer.

Will not charge. 4 Uses and will not charge. For the money - I expected a whole lot more!

[This review was collected as part of a promotion.] I love these versatile Flexvolt batteries. They pack a lot of punch and they last forever.

They last long and go strong I have had them for a couple years and I use them everyday

This battery is what you need for any tough job where you need the power to last!!

It’s powerful, long-standing, and versatile. It works in my 60v and 20v tools!!!!

[This review was collected as part of a promotion.] I use this on all my 20 volt tools and I can say it is a excellent battery

[This review was collected as part of a promotion.] This is a awesome battery it makes your tools battery life last forever!

[This review was collected as part of a promotion.] I have 2 of them and they quit working after the warranty runs out.

[This review was collected as part of a promotion.] Coming up on a month now & couldn't be happier with my investment

[This review was collected as part of a promotion.] Great performance out of this battery use it everyday. Love it !!