# Milwaukee M12™ 4.0 Ah Battery - M12B4

Power through demanding tasks with the Milwaukee M12™ 4.0Ah Battery - M12 B4 . Designed to deliver up to 2x more runtime , 20% more power , and 2x more battery life , this premium REDLITHIUM™ battery enhances your productivity with every charge. Built with integrated shock-resistant separators and individual cell monitoring, it’s engineered for long-term durability—even in harsh conditions as low as -20°C . Whether you’re drilling, cutting, or fastening, this battery ensures your M12™ tools stay powered and protected. Key Features & Specifications: Battery Capacity: 4.0Ah Li-ion Technology: REDLITHIUM™ with REDLINK™ overload protection Runtime: Up to 2x more runtime and 20% more power Durability: Withstands extreme job site conditions and temperatures Protection: Discharge protection and cell monitoring for battery health Compatibility: Works with all Milwaukee® M12™ cordless tools Weight: 0.4 kg System: M12™ Charge Times: C12 C Charger: 80 min M12 C4 Charger: 80 min M12 TC Charger: 347 min M12-18 AC Charger: 115 min M12-18 C Charger: 80 min M12-18 FC / SC Chargers: 52 min The Milwaukee M12™ 4.0 Ah REDLITHIUM™ Battery (M12 B4) is engineered to deliver exceptional performance and durability for professionals using Milwaukee's M12™ cordless tools. This high-capacity 12V lithium-ion battery offers up to twice the runtime, 20% more power, and up to twice the battery life compared to standard lithium-ion batteries and previous Milwaukee® battery technology .

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- Availability: Out of stock
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| Options | SKU | Price | Availability | Variant ID |
| --- | --- | --- | --- | --- |
| Title: Default Title | MM405693SM | GHS 191,000.00 | Out of stock | `variant_01M6FSWCPD26SA50CW07MA30KR` |

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