At $179 it my seem crazy expensive. BUT the LifeTime Warranty also covers batteries for life.
I have a similar combo kit from rigid and have had the batteries both replaced under warranty.
Below is a key part of the warranty:
Lifetime Service Agreement
The original purchaser of an eligible product may elect to register for a free Lifetime Service Agreement. To accept this Lifetime Service Agreement, you must register your product and submit proof of purchase for processing approval as described below. The Lifetime Service Agreement provides the original owner of qualifying RIDGID®
Brand tools a lifetime of free replacement batteries, free service and free replacement parts subject to the limitations
set forth below.
The Lifetime Service Agreement is available free of charge, on all eligible RIDGID® Brand hand held power tools,
stationary power tools and pneumatic tools, subject to the terms and conditions stated below. Customers have 90
days from date of purchase to register tools for the Lifetime Service Agreement. Once all conditions of the registration
process are fulfilled, the tool’s service coverage lasts the lifetime of the original purchaser. The Lifetime Service
Agreement status on a tool is not transferable. Note: The RIDGID Lifetime Service Agreement is only available for
eligible RIDGID tools purchased at THE HOME DEPOT.