I've had some of the same Ryobi batteries for 13+ years and they never changed. That said, I wouldn't buy their stuff now. It's okay for occasional homeowner use, but not up to the task for the work some of us do. Once you make the change, you'll wonder what took you so long. Not running a noisy compressor, or dragging out a hose to constantly trip over, is a big plus.
As Mike said, Milwaukee would be my top choice. I just couldn't justify the 2x to 3x cost difference for my use. Whatever you do, pick something that is better quality and, if at all possible, brushless. Here's a simple chart with an idea of the differences between brushed and brushless.
| | |
Working Principle | Fixed magnets outside and copper coils on rotor. | Permeant magnets on rotor and copper windings on stator. |
Design | Simple construction | Requires electronic circuits to control current |
Unique Feature | Carbon brushes and commutator | The absence of carbon brushes |
Speed Range | Lower speed due to design limitation. | Higher speed due to absence of brushes. |
Battery Life | Normal | Efficient use of battery |
Tool Life | May require periodic maintenance. | Longer tool life |
| Pros:
- Costs less
- Simple and reliable
- Easy to repair
Cons:
- Less efficient
- Higher amount of heat and noise
| Pros:
- 10 to 20% more efficient
- Less noise and heat
- Requires almost no maintenance.
Cons:
|