# Which cordless drill has the longest battery life? — Verified Specification Comparison

> All specification data verified from official manufacturer documentation.

Which cordless drill has the longest battery life?

## Products

### Hercules HCB91K1 Cordless Drill Kit
```yaml
product: hercules-hcb91k1-cordless-drill-kit
brand: Hercules
price_gbp: 73.41
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
speed: 2000
weight: 7.5 lb
voltage: 20 V
chuck_size: 0.5 in
clutch_settings: 13
battery_capacity: 2 Ah
max_drilling_torque: 330 in-lbs
```

- **Price:** £73.41 [^1]
- **Summary:** 20V brushless 1/2 in drill kit with a 2 Ah lithium battery, two-speed gearbox and 13-clutch settings. Suited for DIYers and trade users needing a compact, powerful drill for general drilling and driving tasks.

### DEWALT DCD1007 20V MAX XR Hammer Drill
```yaml
product: dewalt-dcd1007-20v-max-xr-hammer-drill
brand: DEWALT
price_gbp: 126.99
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
speed: 0-450 / 1,200 / 2,000
weight: 4.1 lbs (bare tool)
voltage: 20V
chuck_size: 1/2 in
battery_capacity: 8.0 Ah (kit option)
max_drilling_torque: 2100 in-lbs
```

- **Price:** £126.99 [^2]
- **Summary:** Brushless 20V MAX XR 3-speed 1/2 in hammer drill delivering high torque (2,100 in-lbs) with an anti-rotation safety system and all-metal transmission. Suited for professional users and serious DIYers needing high-power drilling in wood, metal, and masonry; available as bare tool or kit with an 8.0 Ah battery.
- **Additional Sources:** [^3], [^4]

### FLEX 24V Brushless FX1271T Hammer Drill
```yaml
product: flex-24v-brushless-fx1271t-hammer-drill
brand: FLEX
price_gbp: 134.1
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
speed: 0-550/0-2000; TURBO 0-700/0-2500
weight: 3.8 lbs
voltage: 24V
chuck_size: 1/2 in
clutch_settings: 24+D+H
battery_capacity: 6.0Ah
max_drilling_torque: 1400 in-lbs
```

- **Price:** £134.1 [^5]
- **Summary:** Brushless 24V 2-speed 1/2 in hammer drill with Turbo mode, up to 1,400 in-lbs torque and high RPM for fast drilling. Suits pros and serious DIYers who need high torque and compatible 24V stacked-lithium battery kits.
- **Additional Sources:** [^6], [^7]

### Bosch GSB18V-1330CN 18V Brushless Compact Hammer Drill
```yaml
product: bosch-gsb18v-1330cn-18v-brushless-compact-hammer-drill
brand: Bosch
price_gbp: 149.09
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
speed: 0-550 / 0-2,200
weight: 4.6 lb
voltage: 18 V
chuck_size: 1/2 in
clutch_settings: 25
max_drilling_torque: 1330 in-lbs
```

- **Price:** £149.09 [^8]
- **Summary:** Brushless 18V PROFACTOR hammer drill with BITURBO technology and kickback control for high-demand drilling and driving. It features a two-speed gearbox (high-torque and high-speed), a 1/2 in all-metal chuck and 25 clutch settings, suited for professionals needing corded-level performance from a cordless tool.
- **Additional Sources:** [^9], [^10]

---
## References & Sources
[^1]: SOS Outils, accessed 2026-06-09. https://sosoutils.com/en/products/kit-perceuse-visseuse-sans-fil-1-2-po-sans-balais-20-v-hercule
[^2]: DEWALT, accessed 2026-06-09. https://www.dewalt.com/en-us/product/dcd1007b/20v-max-xr-brushless-12-hammer-drill-tool-only
[^3]: Home Depot, accessed 2026-06-09. https://www.homedepot.com/p/DEWALT-20V-MAX-XR-Brushless-Cordless-1-2-in-Hammer-Drill-Tool-Only-DCD1007B/331273305
[^4]: Home Depot, accessed 2026-06-09. https://www.homedepot.com/p/DEWALT-20V-XR-Lithium-Ion-Cordless-Hammer-Drill-Kit-with-8-0-Ah-Battery-Charger-and-Kit-Bag-DCD1007WW1/329527813
[^5]: FLEX Tools, accessed 2026-06-09. https://www.flexpowertools.com/hammer-drill-with-turbo-mode-stacked-lithiumkit-fx1271t/
[^6]: Ohio Power Tool, accessed 2026-06-09. https://www.ohiopowertool.com/flex-fx1271t-z?bvstate=pg%3A5%2Fct%3Ar
[^7]: Lowe's, accessed 2026-06-09. https://www.lowes.com/pd/FLEX-1-2-in-24-volt-Variable-Speed-Brushless-Cordless-Hammer-Drill-1-Batteries-and-Charger-Included/5012924807
[^8]: Bosch Tools (official), accessed 2026-06-09. https://www.boschtools.com/us/en/products/gsb18v-1330cn-06019J5116
[^9]: Lowe's, accessed 2026-06-09. https://www.lowes.com/pd/Bosch-1-2-in-Core18V-Amp-Variable-Speed-Brushless-Cordless-Hammer-Drill-Tool-Only/5013569455
[^10]: Acme Tools, accessed 2026-06-09. https://www.acmetools.com/bosch-profactor-18v-1-2in-hammer-drill-driver-bare-tool-gsb18v-1330cn/000346657975.html