This guide compares the specs, features, and key differences between the Bluetti AC300 and Bluetti EP500 Pro to help you choose the right high-capacity power station. Both models are built for serious off-grid use, but they differ in battery design, expandability, and ideal use cases.
Based on technical specifications and available user feedback, here’s how they stack up.
Bluetti AC300 vs EP500 Pro Specs Comparison
| Feature | Bluetti AC300 | Bluetti EP500 Pro |
|---|---|---|
| Battery Capacity | 3072Wh (expandable to 12,288Wh) | 5100Wh (fixed) |
| Inverter Power | 3000W (6000W surge) | 3000W (6000W surge) |
| Battery Chemistry | LiFePO4 | LiFePO4 |
| Battery Cycle Life | 3,500+ cycles to 80% | 3,500+ cycles to 80% |
| Weight | 47.6 lbs (AC300 unit only) | 182 lbs |
| Expandability | Yes (up to 4×B300 batteries) | No |
| Wheels | No | Yes |
| Max Solar Input | 2400W | 2400W |
| AC Input | 3000W | 3000W |
| 240V Split Phase Support | Yes (with 2 units + Fusion Box) | No |
| UPS Function | Yes | Yes |
Table Caption: Bluetti AC300 vs EP500 Pro Specs Comparison
Power & Performance
Both the Bluetti AC300 and EP500 Pro offer 3000W pure sine wave inverters with 6000W surge capacity, suitable for powering heavy-duty appliances like air conditioners, refrigerators, and power tools.
However, the AC300 has a modular design and supports 240V split-phase setups (with two units and a Fusion Box), making it more scalable for whole-home backup.
Battery Capacity & Cycle Life
The EP500 Pro has a built-in 5100Wh LiFePO4 battery—large and reliable, but non-expandable.
In contrast, the AC300 comes without a built-in battery and requires at least one B300 (3072Wh) battery to operate. You can add up to four for a total of 12,288Wh, giving it a huge advantage in long-term storage potential.
Both systems use LiFePO4 chemistry rated for over 3,500 cycles to 80% capacity.
Output Ports & Expandability
The EP500 Pro comes with a wider variety of built-in ports, including:
- 2× wireless charging pads
- Multiple AC outlets
- USB-A, USB-C (100W), and DC ports
- NEMA L14-30 and RV port
The AC300, paired with a B300 battery, also offers robust port options, though its full port layout depends on the battery module.
Expandability is a major strength of the AC300, while the EP500 Pro is fixed-capacity and non-stackable.
Portability & Weight
The EP500 Pro is extremely heavy at 182 lbs, though it includes built-in wheels for easier mobility.
The AC300 is lighter at 47.6 lbs, and each B300 battery weighs about 79.6 lbs. While the modular approach makes it easier to transport in parts, it does require more setup and cables.
Charging Options
Both units offer:
- 2400W solar input
- 3000W AC charging
- Dual AC + solar charging (max ~5400W)
The AC300 adds flexibility with split charging (one battery via solar, another via AC) and supports faster recharge times when configured with multiple inputs.
Price & Value
The Bluetti EP500 Pro is a premium all-in-one solution priced higher upfront. It’s ideal for users who want plug-and-play backup without extra configuration.
The AC300, while modular and potentially more affordable at entry, can become more expensive depending on how many B300 modules you add. Its value lies in flexibility, expandability, and long-term capability for larger systems.
Final Verdict
Choose the Bluetti AC300 if you:
- Want scalable battery capacity up to 12,288Wh
- Need 240V split-phase output
- Prefer a modular, expandable setup for long-term off-grid living
Choose the Bluetti EP500 Pro if you:
- Want a large, all-in-one power station with no add-ons
- Prefer built-in wheels for mobility
- Need a reliable indoor backup solution for essential appliances
Both models are top-tier solar generators. The right pick depends on your needs for expandability vs simplicity.
FAQs
Can the Bluetti AC300 run without a B300 battery?
No, the AC300 requires at least one B300 battery to function.
Does the EP500 Pro support 240V output?
No, it provides only standard 120V AC output and doesn’t support split-phase pairing.
Which is better for RV or van life?
The AC300 is better for modular setups in RVs, but the EP500 Pro may be too bulky and heavy for mobile use.
Can I use both solar and AC charging simultaneously?
Yes, both the AC300 and EP500 Pro support dual charging inputs for faster recharging.
Individual buyer’s guides:
- BLUETTI AC300 + B300 Buyer’s Guide: Flexible Power for Home & Travel
- Bluetti EP500 & EP500Pro Review – Longest-Lasting Solar Generators
Last update on 2025-05-13 / Affiliate links / Images from Amazon Product Advertising API