The Milwaukee REDLITHIUM™ USB 3.0Ah Battery (48-11-2131) is the second-generation USB rechargeable battery for the Milwaukee USB Rechargeable ecosystem. Delivering 20% more capacity than the first-generation 48-11-2130, it provides longer runtime and more power across every Milwaukee USB Rechargeable tool and light. With 3X faster charging when used with Milwaukee USB Rechargeable products or the REDLITHIUM™ USB Portable Power Source & Charger (48-59-2012), you spend less time waiting and more time working. Eliminate single-use batteries for good.
Key Features
- 20% More Capacity Than Gen 1 — more runtime and power vs. the 48-11-2130 first-generation battery
- 3X Faster Charging — when charged via Milwaukee USB Rechargeable products or the 48-59-2012 REDLITHIUM™ USB Portable Power Source & Charger
- 2-Hour Charge Time — full charge in 2 hours using compatible Milwaukee USB charging products
- Compatible with All Milwaukee USB Rechargeable Products — powers headlamps, work lights, and other Milwaukee USB tools
- Eliminates Single-Use Batteries — rechargeable design reduces waste and ongoing battery costs
- 2-Year Warranty — backed by Milwaukee's standard REDLITHIUM™ USB battery warranty
Specifications
- Brand: Milwaukee Tool
- Model: 48-11-2131
- Capacity: 3.0Ah
- Type: USB Rechargeable (REDLITHIUM™ USB)
- Charge Time: 2 hours (with Milwaukee USB Rechargeable products or 48-59-2012)
- Capacity vs. Gen 1 (48-11-2130): +20%
- Charging Speed vs. Standard USB: 3X faster
- Warranty: 2 years
- SKU: OHL-48-11-2131
Quick Decision Guide
- Already using Milwaukee USB Rechargeable tools? → This is a direct upgrade over the Gen 1 48-11-2130 with 20% more capacity.
- Want the fastest possible charge time? → Pair with the REDLITHIUM™ USB Portable Power Source & Charger (48-59-2012) for 2-hour full charges.
- Tired of replacing AA or AAA batteries in your work lights? → This battery eliminates single-use batteries across the Milwaukee USB Rechargeable lineup.
- Need a charger? → Ask us about the Milwaukee 48-59-2012 REDLITHIUM™ USB Portable Power Source & Charger.
Frequently Asked Questions
What's the difference between the 48-11-2130 and 48-11-2131?
The 48-11-2131 is the second-generation REDLITHIUM™ USB battery. It delivers 20% more capacity than the first-generation 48-11-2130, meaning longer runtime per charge across all compatible Milwaukee USB Rechargeable products.
What Milwaukee products is this compatible with?
This battery powers all Milwaukee USB Rechargeable products, including headlamps, work lights, and other USB Rechargeable tools in the Milwaukee lineup.
How do I charge it?
Charge via any Milwaukee USB Rechargeable product or the REDLITHIUM™ USB Portable Power Source & Charger (48-59-2012) for the fastest 2-hour charge time. It can also be charged via standard USB, though at slower speeds.
What warranty does this battery carry?
Milwaukee covers the REDLITHIUM™ USB 3.0Ah Battery with a 2-year warranty.