Beam EXTEND L20 Portable Power Bank
Stay charged anywhere you go with the BEAM EXTEND Li-Polymer Power Bank series; these portable lightweight power banks are the perfect power solution for camping, off road, traveling, hiking, and outdoors for people on the go.

The BEAM EXTEND L20 is a sleek and thin 20000mAh power bank that features the latest USB-C connectivity to provide quick and optimum power for your supported devices. The EXTEND L20 can simultaneously charge up to 3 devices and is fully capable of charging your smartphone or tablet several times over. It is perfect for travel, on the road, on a boat or in a flight. You can also recharge the battery in a flash from empty to full capacity in less than 8-hours, saving you half the time compared to other models.
POWER / ELECTRICAL SPECIFICATIONS | ||
Beam L20 Portable Power Bank |
Input/Output 1 – USB Type-C (18W) |
|
Charging Time | Less than 8 hours | |
ENVIRONMENTAL SPECIFICATIONS (MAX) | ||
Degrees C | Degrees F | |
Storage | +5 to +35 | +41 to +95 |
0 to +40 | +32 to + 104 | |
INTERFACES | ||
Visual Interface | 4-LED | |
Physical Interface | Power On/Off Button | |
PHYSICAL SPECIFICATIONS | ||
Dimensions | mm | inches |
Beam L20 Portable Power Bank (L x W x H) | 137 x 68.5 x 25.5 | 5.40 x 2.70 x 1.00 |
Box Dimension (L x W x H) | 182 x 107 x 35 | 7.17 x 4.21 x 1.38 |
Weight | g | lbs |
Beam L20 Portable Power Bank | 346 | 0.76 |
Boxed Weight | 400 | 0.88 |
BATTERY SPECIFICATIONS | ||
Pack Capacity | 20,000 mAh/ 3.7Vdc (74Wh) | |
Usable life | 300 charge-discharge cycles minimum | |
Storage Life | Requires recharging every 6-months if in storage | |
Protection | Short Circuit Protection | |
INTERFACE | ||
Visual Interface | 4 LEDs | |
Physical Interface | Power On/Off Button, Battery Level Check | |
Kit Contents
- L20 Power Bank
- USB Micro-B Cable with Lightning Adaptor (30cm)
- USB Type-C to USB Type-C Cable (30cm)
- Quick Start Guide
KEY FEATURES
- Robust design with strong casing to protect internal components
- High quality and long lasting li-polymer battery
- Charges devices faster and offers more power
- Lightweight, compact, easy to carry and store
- Auto Detect device’s electrical requirements
- USB-C input/output, more power to charge larger devices
- 24-month warranty
Specifically designed for:
- Smartphones, Tablets, Mobile Phones, MP4 Players, Gaming Devices, Digital Cameras, Action Cameras
- Tested on Iridium GO!
- Tested on ZOLEO
- Inmarsat Phones