Milwaukee M18 5.0Ah Starter Pack - M18SP-501B
The M18 5.0Ah REDLITHIUM-ION battery features superior pack construction, electronics, and performance to deliver more work per charge and more work over the life of the pack than any battery on the market. M18 5.0Ah REDLITHIUM-ION battery features an advanced design, protecting the pack against harsh jobsite environments. This protection routes water away from the electronics and out of the battery pack, extends run-time and life by minimising heat, and prevents pack failures from vibration or drops. This unique to MILWAUKEE design also allows the battery to operate in extreme cold weather conditions (below 0 deg F/-18 deg C). Managed by MILWAUKEE’s exclusive REDLINK Intelligence, the battery features overload protection to prevent you from damaging your cordless power tools in heavy-duty situations, while the discharge protection prevents cell damage. It also provides full system compatibility with 150+ M18 cordless solutions.
The M18 5.0Ah REDLITHIUM-ION battery features superior pack construction, electronics, and performance to deliver more work per charge and more work over the life of the pack than any battery on the market. M18 5.0Ah REDLITHIUM-ION battery features an advanced design, protecting the pack against harsh jobsite environments. This protection routes water away from the electronics and out of the battery pack, extends run-time and life by minimising heat, and prevents pack failures from vibration or drops. This unique to MILWAUKEE design also allows the battery to operate in extreme cold weather conditions (below 0 deg F/-18 deg C). Managed by MILWAUKEE’s exclusive REDLINK Intelligence, the battery features overload protection to prevent you from damaging your cordless power tools in heavy-duty situations, while the discharge protection prevents cell damage. It also provides full system compatibility with 150+ M18 cordless solutions.
The M18 5.0Ah REDLITHIUM-ION battery features superior pack construction, electronics, and performance to deliver more work per charge and more work over the life of the pack than any battery on the market. M18 5.0Ah REDLITHIUM-ION battery features an advanced design, protecting the pack against harsh jobsite environments. This protection routes water away from the electronics and out of the battery pack, extends run-time and life by minimising heat, and prevents pack failures from vibration or drops. This unique to MILWAUKEE design also allows the battery to operate in extreme cold weather conditions (below 0 deg F/-18 deg C). Managed by MILWAUKEE’s exclusive REDLINK Intelligence, the battery features overload protection to prevent you from damaging your cordless power tools in heavy-duty situations, while the discharge protection prevents cell damage. It also provides full system compatibility with 150+ M18 cordless solutions.
The M18 5.0Ah REDLITHIUM-ION battery features superior pack construction, electronics, and performance to deliver more work per charge and more work over the life of the pack than any battery on the market. M18 5.0Ah REDLITHIUM-ION battery features an advanced design, protecting the pack against harsh jobsite environments. This protection routes water away from the electronics and out of the battery pack, extends run-time and life by minimising heat, and prevents pack failures from vibration or drops. This unique to MILWAUKEE design also allows the battery to operate in extreme cold weather conditions (below 0 deg F/-18 deg C). Managed by MILWAUKEE’s exclusive REDLINK Intelligence, the battery features overload protection to prevent you from damaging your cordless power tools in heavy-duty situations, while the discharge protection prevents cell damage. It also provides full system compatibility with 150+ M18 cordless solutions.
in 40 offers
The lowest price for Milwaukee M18 5.0Ah Starter Pack - M18SP-501B right now is $60.95 at eBay.com.au, compared across 24 retailers.
The all-time low was $60.95 on 7 Feb 2026. That's the lowest price we've ever tracked — a great time to buy.
Prices last updated 3 Nov 2026.
Last updated at 03/11/2026 07:50:24
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| Power Source | Cordless |
| Power Voltage | 18V |
| Battery Voltage | 18V |
| Battery Type | Li-ion |
| Battery Capacity | 5.0Ah |
Charger Battery 18V 1X5.0AH M18 Starter Pack Milwaukee
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Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Replace For Milwaukee M18b 18v 5.0ah Battery And Charger Kit - M18b5
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Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
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Delivery between 6–12 Nov $16.65
| Power Source | Cordless |
| Power Voltage | 18V |
| Battery Voltage | 18V |
| Battery Type | Li-ion |
| Battery Capacity | 5.0Ah |
