The first thing that caught my eye was the image of the mower standing erect, perfectly folded and stored away in a garage. That means that the 2.0 Ah 56V EGO battery (XBA1120) puts out 112 Wh and the 4.0 Ah model (BA2240) delivers 224 Wh of power. Reviewer’s Note: How are Watt-hours calculated for lithium-ion cells and batteries? Multiply a cell or battery’s rated capacity, in ampere-hours, by its nominal operating voltage. If you bought the 56V lawn mower, then you have a little bit of both. The toss-up is whether you want to invest in a charger, or just pick up an additional battery to swap out if you need more continuous run-time. With the CH2100, you can recharge a 2.0 Ah battery in about 40 minutes. The CH5500 comes standard with EGO’s new 20-inch Cordless Lawn Mower, but it’s also a $99 option for anyone who bought the company’s other tools (which come with the slower, but still impressive CH2100.

To make it even better, charging for just 15 minutes gets you to 50% to complete a job if you’re in a hurry. With the EGO CH5500 charger, it does indeed recharge its biggest battery in under 30 minutes.

It’s actually completely unbelievable-which is why we tested it after draining a full pack all the way down…only to find that the claims are true. The biggest surprise of all has to be the fact that the new 4.0 Ah 56V battery pack from EGO can be recharged in just 30 minutes! The 2.0 Ah pack can get fully recharged in just 25 minutes. But with new technology and new tools come new surprises.

Pro tools review ego trimmer