The is a rugged 18 V lithium‑ion battery designed for pros who don’t want to baby their kit — it gives real punch without a bulky pack on your drill or impact. In practice, this isn’t just some generic battery — it’s a piece of kit that feels like it’s built for serial use on site because Bosch engineered it to run cool and last longer under hard use.

What really stands out is the 4.0 Ah capacity that’s squeezed into a compact, light package — you don’t lug around a brick all day, yet you still get performance on par with larger standard 4 Ah packs. And that matters a lot when you’re talking repeat cuts, hole drilling, and overhead screwing without constantly swapping batteries.

Key Features:

• Compact 18 V Li‑ion Cell - Delivers full 4 Ah performance without the weight and size of older packs.
• COOLPACK 2.0 Technology - Keeps heat in check, which means less stress on the cells when you hammer away at tough jobs.
• Charge Level Indicator - Lets you see exactly how much juice is left so you’re not guessing mid‑cut.
• AMPShare Compatibility - Works across the Bosch Professional 18 V ecosystem so you can swap it between tools easily.
• Optimised Cell Design - Bosch’s newer cell tech keeps size down and runtime up compared to old‑school packs.

Applications

The Bosch ProCore 18V 4.0Ah Battery Pack is solid for general trade use — from cord‑free drills and impact drivers to angle grinders and even lasers — you’ll notice it holds up under mid‑range draw tools and longer sessions without heating up. Swapping this between tools on busy job sites is simple thanks to the 18 V Professional system compatibility.

Why Choose This Model

If you’re sick of carrying heavy batteries that sag under load, the ProCore 18V 4.0Ah strikes a balance that really works on real jobs — enough capacity to get through a day’s work without frequent recharge, but in a smaller package that doesn’t wreck your shoulder. It’s a good pick if you want dependable runtime without going to the bulk of 8 Ah or higher packs.

Technical Specifications Explained

• 18 V Voltage - Standard pro system voltage that fits all Bosch 18 V tools and chargers.
• 4.0 Ah Capacity - Real‑world energy storage that keeps your tools going longer between charges.
• Li‑ion Chemistry - No memory effect, low self‑discharge, and efficient power delivery for tougher tasks.
• Weight ~515 g - Light enough to make a big tool feel manageable over long shifts.
• Dimensions ~77×117×47 mm - Compact footprint lets you work in tight spaces without obstruction.

Who Should Buy This

This is the battery you want if you’re a tradesperson who needs reliable cordless runtime on a variety of Bosch 18 V tools without lugging heavier high‑capacity packs — perfect for carpenters, electricians, plumbers, or general contractors who swap tools all day.

And if you’re someone who runs medium‑demand tools (grinders, saws, rotary hammers) and prefers a balance of weight and performance, this Bosch ProCore pack won’t slow you down or get hot under pressure.