# What nail gun has the longest battery life or magazine capacity? — Verified Specification Comparison

> All specification data verified from official manufacturer documentation.

What nail gun has the longest battery life or magazine capacity?

## Products

### Milwaukee 2746-21CT
```yaml
product: milwaukee-2746-21ct
brand: Milwaukee
price_gbp: 340.78
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
weight: 7 lb
voltage: 18 V
firing_rate: 3 Nails per second
trigger_type: Contact Sequential
battery_capacity: 2 Ah
magazine_capacity: 110
```

- **Price:** £340.78 [^1]
- **Summary:** Milwaukee's M18 FUEL 2746-21CT is a cordless 18-gauge brad nailer kit that uses an 18 V REDLITHIUM battery and a nitrogen air spring mechanism for consistent, clean nail seating with zero ramp-up time. It supports sequential and contact actuation firing modes for fast finishing and trim work. Ideal for pros and serious DIYers who want pneumatic-like performance without a compressor or hoses.
- **Ideal For:** It pairs an 18 V 2 Ah battery with a 110-nail magazine, which is a strong match for maximizing runtime and reloading intervals in 'longest battery life or magazine capacity' nail gun use cases.
- **Additional Sources:** [^2], [^3], [^1], [^2], [^3]

### Milwaukee 3020-20-2746-20
```yaml
product: milwaukee-3020-20-2746-20
brand: Milwaukee
price_gbp: 453.63
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
weight: 6.2 lbs
voltage: 18
firing_rate: 3 nails/sec
trigger_type: Sequential and contact actuation firing modes
magazine_capacity: 110 nails
```

- **Price:** £453.63 [^4]
- **Summary:** Milwaukee's M18 FUEL cordless finish nailer uses a nitrogen air spring mechanism with a brushless motor for fast, consistent firing without compressor or hose. It also has a tool-free jam clearing latch and supports both sequential and contact actuation firing modes, making it suitable for professional finish work and remodelers.
- **Ideal For:** For longest battery life or magazine capacity, this tool's 110-nail magazine and up to 700 nails per charge (with M18 CP2.0) help reduce reloads and battery swaps.
- **Additional Sources:** [^4]

### Metabo HPT NT1865DAA
```yaml
product: metabo-hpt-nt1865daa
brand: Metabo HPT
price_gbp: 302.17
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
weight: 5.9 lbs
voltage: 18V
firing_rate: 3 nails/sec
trigger_type: Selective
battery_capacity: 2.0Ah
magazine_capacity: 100
```

- **Price:** £302.17 [^5]
- **Summary:** This is an 18V cordless 15-gauge angled finish nailer using an air spring drive system for pneumatic-like performance without hoses or a compressor. It drives up to 700 nails per charge with the included 2.0Ah battery, and has a 100-nail bottom-loaded magazine. It's suited for trim and finish work where you want cordless convenience and consistent results.
- **Ideal For:** If you want maximum run time per charge and a full 100-nail magazine, the NT1865DAA is rated for 700 nails per 2.0Ah battery and holds 100 nails, making it a strong choice for longer battery/magazine sessions.
- **Additional Sources:** [^6], [^7], [^5], [^6], [^7]

---
## References & Sources
[^1]: Home Depot, accessed 2026-06-27. https://www.homedepot.com/p/Milwaukee-M18-FUEL-GEN-II-18V-18-Gauge-Lith-Ion-Brushless-Cordless-Brad-Nailer-Kit-with-One-2-0-Ah-Battery-Crown-Stapler-2746-21CT-2749-20/333069673
[^2]: Trico Lumber, accessed 2026-06-27. https://tricolumber.com/p/d1268801-155e-4360-9698-586a1a8f5fda/9670357
[^3]: DKHardware, accessed 2026-06-27. https://www.dkhardware.com/milwaukee-2746-21ct-m18-fuel-gen-ii-18-volt-18-gauge-lithium-ion-brushless-cordless-brad-nailer-kit-with-one-20-ah-batt-product-3709932.html
[^4]: Home Depot, accessed 2026-06-27. https://www.homedepot.com/p/Milwaukee-M18-FUEL-18-Volt-Lith-Ion-Brushless-Cordless-Gen-ll-16-Gauge-Straight-Finish-Nailer-w-18-Gauge-Brad-Nailer-Tool-Only-3020-20-2746-20/330557910
[^5]: Atlas Machinery, accessed 2026-06-27. https://www.atlas-machinery.com/metabo-hpt/HPT-NT1865DAAM-382311M/
[^6]: CPO Power (CP O Tools), accessed 2026-06-27. https://www.cpopowertools.com/metabo-hpt-nt1865daam-18v-multivolt-brushless-lithium-ion-15-gauge-cordless-angled-finish-nailer--2-ah-/mhpnnt1865daam.html
[^7]: Metabo HPT, accessed 2026-06-27. https://metabo-hpt.com/products/product/18v-multivolt--brushless-pro-15-ga-angled-finish-nailer-(1x2.0ah)---metabo-hpt-nt1865daa