THE GEAR GUIDE

Batteries & Power Banks

A USB power bank and a 12 V house battery solve different problems. Check both the energy stored and the voltage your device needs.

READ THE LABEL

What to look for

Compare watt-hours for energy, rather than amp-hours at different voltages.
Check USB-C profiles and cable ratings for laptops.
A bare 12 V battery needs suitable fusing and a compatible charger.
Check the BMS limits and cold-weather charging instructions.

The shortlist

PUBLISHED SPECS · DIRECT LINKS

8 picks · Manufacturer specifications only.

Amazon purchase links, where available, contain no affiliate tag. Other outbound links provide manufacturer information. Disclosure

Premium

Anker

737 Power Bank (A1289)

Manufacturer ratings · Not tested by us

Battery: Lithium polymer
Max output: 140 W
Cell capacity: 24,000 mAh

Anker lists 24,000 mAh and up to 140 W USB-C output. Check the required USB-C cable and profile.

Specifications & limits

Budget

NITECORE

NB10000 Gen3

Manufacturer ratings · Not tested by us

Capacity: 38.5 Wh
Battery: Lithium-ion
Max output: 22.5 W
Cell capacity: 10,000 mAh

10,000 mAh cell rating; 22.5 W is the single-port maximum, while total output is rated at 15 W.

Specifications & limits

Mid

NITECORE

NB20000 Gen3

Manufacturer ratings · Not tested by us

Capacity: 72 Wh
Battery: Lithium-ion
Max output: 22.5 W
Cell capacity: 20,000 mAh

20,000 mAh cell rating; 22.5 W is the single-port maximum, while total output is rated at 15 W.

Specifications & limits

Mid

BioLite

Charge 20 PD

Manufacturer ratings · Not tested by us

Capacity: 22.2 Wh
Battery: Lithium-ion
Max output: 18 W
Cell capacity: 6,000 mAh
Ports: 1 USB-C PD + 2 USB-A

6,000 mAh / 22.2 Wh manufacturer cell rating. The 18 W output rating is total across ports.

Specifications & limits

Mid

BioLite

Charge 40 PD

Manufacturer ratings · Not tested by us

Capacity: 37 Wh
Battery: Lithium-ion
Max output: 18 W
Cell capacity: 10,000 mAh
Ports: 1 USB-C PD + 2 USB-A

10,000 mAh / 37 Wh manufacturer cell rating. The 18 W output rating is total across ports.

Specifications & limits

Mid

BioLite

Charge 80 PD

Manufacturer ratings · Not tested by us

Capacity: 74 Wh
Battery: Lithium-ion
Max output: 18 W
Cell capacity: 20,000 mAh
Ports: 1 USB-C PD + 2 USB-A

20,000 mAh / 74 Wh manufacturer cell rating. The 18 W output rating is total across ports.

Specifications & limits

Mid

Goal Zero

Venture 35

Manufacturer ratings · Not tested by us

Capacity: 35.52 Wh
Battery: Li-ion NMC
Max output: 18 W
Cell capacity: 9,600 mAh
Ports: USB-C PD + 2 USB-A

35.52 Wh cell rating and up to 18 W USB-C PD. Follow the closed-port-cover conditions for IP67.

Specifications & limits

Mid

Goal Zero

Venture 75

Manufacturer ratings · Not tested by us

Capacity: 71.04 Wh
Battery: Li-ion NMC
Max output: 60 W
Cell capacity: 19,200 mAh
Ports: USB-C PD + 2 USB-A

71.04 Wh cell rating and up to 60 W USB-C PD. Follow the closed-port-cover conditions for IP67.

Specifications & limits

Batteries & Power Banks

What to look for

The shortlist

Part of these setups