ALLPOWERS B3000 Extension Battery for R3500/ R4000 | 3168Wh
Swift, free delivery from our UK warehouse – expect delivery in 1-3 business days, with possible delays in certain regions.
Orders with power stations and solar panels may ship separately.
Enjoy 15-day Price Protection from your purchase date. If the price drops, we'll refund the difference.
Unhappy with your purchase? Return it within 15 days of shipment for a hassle-free refund.
Our power stations offer a 5-year warranty, solar panels have a 2-year warranty, and cables come with a 1-year warranty.
ALLPOWERS B3000 Extension Battery for R3500/ R4000 | 3168Wh






1152Wh Capacity Per Unit
Expand R3500 to 12.6kWh
Compatible with R3500/R4000
Durable LiFePO4 Battery
Power. Expanded.
Versatility Unchained

Power Recharged.

Discover More
Specification
Frequently Asked Questions
The runtime can be calculated as follows:
Runtime = Battery Capacity x Depth of Discharge x Inverter Efficiency ÷ Rated Power of the device.
For example, if the R3500+B3000 is used to power a 120W Portable Cooler, the runtime would be 6336Wh x 86% x 80% ÷ 120W ≈ 36.3 hours.
Or you can calculate here how long power stations with different outputs can supply your system.
DC Output Runtime = Battery Capacity x Depth of Discharge ÷ Rated Power of the device.
For example, if the B3000 is used to power a 74Wh Drone, the runtime would be 3168Wh x 86% ÷ 74W ≈ 36.8 times.
The above date is for reference ONLY. Please note that the formula is NOT suitable for inductive loads with compressors, like refrigerators, air conditioners, etc.
The B3000 is a versatile power solution that can operate independently as a Power Bank, charging USB-A and USB-C compatible devices like drones, camping lights, laptops, and smartphones. Additionally, you can power devices with a car lighter socket, such as a mini-fridge, by utilizing the B3000's Car Port.
However, the true potential of the B3000 is unlocked when paired with the R3500/ R4000. By connecting the 3000 to the R3500/ R4000, it serves as an expandable battery pack, providing extended runtime for powering a wide range of AC appliances through the R3500's AC ports.
In essence, the B3000 offers a flexible and compact power solution on its own, while seamlessly integrating with the R3500 to deliver extended AC power capabilities, making it an indispensable companion for both on-the-go charging and off-grid power needs.