SKIL PWR CORE 20™ 20-Volt 2.0Ah Lithium-Ion Battery, BY519701

The battery is light and provides good power for my drill/driver. However, the first time I charged it, it only charged halfway. I tried another charger with the same result. Other batteries charge all the way. It appears that quality control is lacking, with a failure right out of the box.

The power of these batteries for very very light work is decent unfortunately i was unaware of the fact that the batteries dont keep a charge for very long when in almost constant use

Very powerful for its compact size. Fast charging capability; it took 20 minutes to a fully charged.

I was disappointed with the unit. The 2 speeds were slower than I expected. Worked ok but my expectations were not met.

Was a little disappointed with 1st battery not last long at all, but certainly pleased Skil took care of the situation with speed and kindness, great job !

I have had to have the battery replaced twice now. The inconvenience of waiting for the replacement and not being able to use either the screwdriver or blower during that time is the reason for 3 stars. We'll see how this third battery lasts.

They work great but the battery's don't last 2 hours.

wrks in svrl additional btry op Skl tools glad2be able2recieve via USPS

Skill 20 A Battery delivers reliability with easy to use features like capacity and easy loading.

Battery leaked black fluid and no longer holds any charge. Is now useless. Wasn't easy to get ahold of Skil support but after explaining, they said they were sending a replacement. Was told I'd receive tracking information, never received about a week later, after trying to get a hold of support again they said it was because they had no stock and when in stock will ship. Well, that was a month ago. Still no replacement battery. This is not the only battery that's gone bad from Skil. Wanted to like. But batteries fail too much. And Skil not following through.