Milwaukee48-11-2420 M12 REDLITHIUM 2.0 Compact Battery Pack (1-Pack)

The first battery pak I got, for whatever reason would not fit snuggly into the dock on the battery charger and would not charge. So I sent that bp back for a refund and order another bp. The second bp fit much better and charged properly. So far, so good.

Just like new

Buena calidad

Buen producto. 💯

Overhead riveting to apply soffit vents. Smooth and efficient operation, but HEAVY for overhead use. No problem popping heavy rivets. Nice job including the catch bin to catch the mandrels overhead. Over priced for not including the charger and battery in the original purchase, thus 4 stars.

As a retired electrical engineer who specialized in energy storage, actual battery performance is of prime concern, specifically the 2 Ah, or 2000 milliampere hour. So upon receipt, I fully charge and test each battery and compare to its advertised or namelabel rating. I bought two batteries at a good sale price, free shipping and a state sales tax holiday. Test results were 1.86 and 1.88 Ah at 4 amperes constant current discharge to 8.0V low voltage cutoff, commonly called a 2C rate. Test was conducted on a West Mountain Radio model CBA III.These results are excellent, only 6.5% below rated, considering the 2C rate. Amperes hour rating are, by standard, for a C/20 rate, but who wants to wait 20 hours for a test. So the 2C test only takes 30 minutes. At higher rates (amperage), the delivered Ah will be less. This is always the case and under 10% is expected for this chemistry.Genuine Milwaukee rechargeable Lithium Ion batteries have always tested similarity in my experience with 12 and 18 volt versions of various rated capacities (Ah). That's been 6 of 18V and now 9 of the 12V. I once tried a knockoff 12V and it test way below 50%. I complained, vendor sent replacement, it failed to do better, so vendor refunded.Genuine Milwaukee batteries are tops in performance, quality, durability, etc. in my opinion. Amazon superb vendor.

Thank you!

Battery charged up and so far works just like the OEM original battery.