Milwaukee 18V 5.0Ah REDLITHIUM Starter Pack M18SP-501BA
Product Details TheM18 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 minimizing 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 OoF/-18oC). 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 60+ M18 cordless solutions. Upgrade to the M18 5.0AH REDLITHIUM-ION BATTERY to instantly increase the run-time and durability of your M18 cordless tools. Features REDLINK Intelligence: Provides optimized performance and overload protection using total system communication between tool, battery and charger Best-in-class construction: Offers long-lasting performance and durability Fuel gauge onboard: Displays remaining runtime for less downtime on the job All-weather performance: Delivers fade free power in extreme jobsite conditions Add any M18 Tool-Only Option to Build Your Own Kit Specifications Voltage 12v and 18v
Product Details TheM18 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 minimizing 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 OoF/-18oC). 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 60+ M18 cordless solutions. Upgrade to the M18 5.0AH REDLITHIUM-ION BATTERY to instantly increase the run-time and durability of your M18 cordless tools. Features REDLINK Intelligence: Provides optimized performance and overload protection using total system communication between tool, battery and charger Best-in-class construction: Offers long-lasting performance and durability Fuel gauge onboard: Displays remaining runtime for less downtime on the job All-weather performance: Delivers fade free power in extreme jobsite conditions Add any M18 Tool-Only Option to Build Your Own Kit Specifications Voltage 12v and 18v
Product Details TheM18 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 minimizing 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 OoF/-18oC). 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 60+ M18 cordless solutions. Upgrade to the M18 5.0AH REDLITHIUM-ION BATTERY to instantly increase the run-time and durability of your M18 cordless tools. Features REDLINK Intelligence: Provides optimized performance and overload protection using total system communication between tool, battery and charger Best-in-class construction: Offers long-lasting performance and durability Fuel gauge onboard: Displays remaining runtime for less downtime on the job All-weather performance: Delivers fade free power in extreme jobsite conditions Add any M18 Tool-Only Option to Build Your Own Kit Specifications Voltage 12v and 18v
Product Details TheM18 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 minimizing 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 OoF/-18oC). 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 60+ M18 cordless solutions. Upgrade to the M18 5.0AH REDLITHIUM-ION BATTERY to instantly increase the run-time and durability of your M18 cordless tools. Features REDLINK Intelligence: Provides optimized performance and overload protection using total system communication between tool, battery and charger Best-in-class construction: Offers long-lasting performance and durability Fuel gauge onboard: Displays remaining runtime for less downtime on the job All-weather performance: Delivers fade free power in extreme jobsite conditions Add any M18 Tool-Only Option to Build Your Own Kit Specifications Voltage 12v and 18v
in 2 offers
The lowest price for Milwaukee 18V 5.0Ah REDLITHIUM Starter Pack M18SP-501BA right now is $348.00 at Toolmart Australia, compared across 2 retailers.
The all-time low was $179.00 on 9 Apr 2025 — today's price is 94% above the lowest ever. It has been notably cheaper before — worth setting a price alert.
Prices last updated 29 Oct 2026.
Last updated at 29/10/2026 18:26:29
Milwaukee M18SP-501B - 18V Starter Pack - 1 x 5.0Ah Battery & Fast Charger
Free delivery
Milwaukee M18 5.0ah Redlithium-ion Starter Pack 12v & 18v 1y Warranty
Free delivery
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!
originally posted on ebay.com
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| Battery Type | Lithium-ion |
| REDLINK intelligence | Yes |
| Battery fuel gauge | Yes |
| Weight (tool only) | 0.77 kg |
| Supplied in | Carton |
Milwaukee M18SP-501B - 18V Starter Pack - 1 x 5.0Ah Battery & Fast Charger
Free delivery
Milwaukee M18 5.0ah Redlithium-ion Starter Pack 12v & 18v 1y Warranty
Free delivery
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!
Great thanks
| Battery Type | Lithium-ion |
| REDLINK intelligence | Yes |
| Battery fuel gauge | Yes |
| Weight (tool only) | 0.77 kg |
| Supplied in | Carton |
