Milwaukee 48-59-1850 M18 XC 5.0 Starter Kit vs RYOBI 40V Lithium-Ion 4Ah High Capacity Battery
Head-to-head spec comparison to help you pick the right battery for your needs.
Deciding between a genuine pack and a cheaper aftermarket one? Read our honest genuine vs aftermarket batteries guide.Read the guide →
Spec-by-Spec Comparison
| Spec | Milwaukee 48-59-1850 M18 XC 5.0 Starter Kit | RYOBI 40V Lithium-Ion 4Ah High Capacity Battery |
|---|---|---|
| Platform | M18 | 40V |
| Voltage | 18V | 40V MAX |
| Capacity | 5 Ah | 4 Ah |
| Type | kit | high-output |
| Genuine OEM | Yes | Yes |
| Fuel Gauge | No | No |
| Warranty | 5 years | 3 years |
| Price | $112 | $104.99 |
| Rating | 8.8/10 | 8.4/10 |
| Buy on Amazon | Buy on Amazon |
Pros & Cons
Milwaukee 48-59-1850 M18 XC 5.0 Starter Kit
Pros
- Bundles a genuine Milwaukee M18 XC 5.0Ah battery with a charger in one kit
- 5.0Ah capacity gives meaningfully more runtime than Milwaukee's compact 2.0Ah/3.0Ah packs
- Genuine Milwaukee OEM, not a third-party bundle
- Good starter option if you're buying into M18 for the first time or need a spare battery-and-charger set
Cons
- Only includes one battery — no second pack for hot-swapping
- 5.0Ah packs are larger and heavier than compact packs, which can make lighter tools feel nose-heavy
- We haven't run a runtime test ourselves; 5.0Ah is the manufacturer's stated capacity
RYOBI 40V Lithium-Ion 4Ah High Capacity Battery
Pros
- Genuine RYOBI 40V pack backed by RYOBI's 3-year warranty
- 4Ah capacity suits RYOBI's outdoor power equipment lineup — mowers, trimmers, blowers
- Fits the full RYOBI 40V platform
Cons
- Listed as low stock at the time of this write-up — availability can be inconsistent
- Mid-range price relative to smaller-capacity 40V packs
- Only compatible with 40V tools, not ONE+ 18V
Our Verdicts
Milwaukee 48-59-1850 M18 XC 5.0 Starter Kit
A solid way to add a genuine, higher-capacity M18 battery and charger in one purchase — good value if you need more runtime than a starter 2.0Ah kit provides.
RYOBI 40V Lithium-Ion 4Ah High Capacity Battery
A genuine RYOBI 40V pack for the outdoor-tool side of the lineup — solid capacity for mowers and trimmers, though stock availability has been inconsistent.
More Comparisons
Milwaukee M18 REDLITHIUM 5.0Ah Battery (48-11-1850) vs Milwaukee 48-59-1850 M18 XC 5.0 Starter KitMilwaukee M18 REDLITHIUM 5.0Ah Battery (48-11-1850) vs RYOBI 40V Lithium-Ion 4Ah High Capacity BatteryMilwaukee M18 REDLITHIUM Forge HD12.0 Battery vs Milwaukee 48-59-1850 M18 XC 5.0 Starter KitMilwaukee M18 REDLITHIUM Forge HD12.0 Battery vs RYOBI 40V Lithium-Ion 4Ah High Capacity BatteryMilwaukee M12 REDLITHIUM 2.0Ah Battery (2-Pack) & Charger Kit vs Milwaukee 48-59-1850 M18 XC 5.0 Starter KitMilwaukee M12 REDLITHIUM 2.0Ah Battery (2-Pack) & Charger Kit vs RYOBI 40V Lithium-Ion 4Ah High Capacity BatteryDEWALT 20V MAX 5.0Ah Battery (DCB205) vs Milwaukee 48-59-1850 M18 XC 5.0 Starter KitDEWALT 20V MAX 5.0Ah Battery (DCB205) vs RYOBI 40V Lithium-Ion 4Ah High Capacity Battery