RIDGID 18V System · 18V
RIDGID 18V 4.0 Ah MAX Output Lithium-Ion Battery (AC840087)
MAX Output high-discharge battery engineered to unlock maximum power from RIDGID brushless jigsaw motors.
Cell Engineering & Performance
Constructed with premium 21700 cells and intelligent electronics that communicate directly with the tool motor to deliver up to 50% more power under heavy loads compared to standard packs. Rugged overmolding withstands jobsite impacts.
Workshop recommendation: The definitive match for the RIDGID R86344B brushless jigsaw to achieve full 3,500 SPM cutting velocity under load.
Key Features
- MAX Output technology with 21700 lithium cells
- Up to 50% more power in high-demand cuts
- Integrated 4-bar fuel gauge
- Eligible for RIDGID Lifetime Service Agreement upon registration
Compatible Cordless Jigsaws in our Catalog
This battery pack is 100% mechanically and electronically compatible with the following saws:
Before You Buy
Ensure you possess a compatible rapid charger from the same manufacturer and platform (or purchase an official Starter Kit bundled with a charger). Lithium-ion packs should not be stored completely depleted; maintain approximately 40% to 60% charge if storing for extended workshop downtime.
When browsing merchant listings on Amazon, verify whether the listing designates a single bare battery pack, a multi-pack, or a complete kit with high-speed charging dock.
