# EP900 + 2×B500: specs and price

**Price (US):** Not published (Retailer InvertersRUs lists configurable EP900 bundles ranging from $3,999.00 (a single B500 battery module alone, requires an existing EP900) to $17,298.00 (EP900 + 4×B500 + Reliance sub-panel); the specific price for the 2-module base bundle used for these specs could not be isolated from the listing, so priceUsd is left null.), as of 2026-08-01.
**Brand:** BLUETTI
**Released:** 2023
**Deskmark:** Bronze Deskmark — pay-blind category standing 43/100, #8 of 12 in class (independent, computed from sourced data, never for sale).

## Specifications

| Spec | Value |
| --- | --- |
| Price (US) | Not published |
| Brand | BLUETTI |
| Released | 2023 |
| Usable capacity kwh | 8.9 |
| Continuous power (kW) | 7.6 |
| Peak power (kW) | 9 |
| Battery chemistry | LiFePO4 (LFP) |
| Round trip efficiency | 85 |
| Scalable stackable | Yes |
| Warranty years | 10 |
| Backup transfer time ms | 10 |
| Weight (lb) | 361.4 |

## Where it stands

On the spec sheet, its round trip efficiency of 85 is the lowest of the 10, its warranty years of 10 is the lowest of the 12, and its backup transfer time ms of 10 is the lowest of the 4.

## Frequently asked questions

**How much does the EP900 + 2×B500 cost?**

The EP900 + 2×B500 has no published US price as of 2026-08-01.

**When was the EP900 + 2×B500 released?**

The EP900 + 2×B500 was released 2023.

**What are the EP900 + 2×B500's key specs?**

EP900 + 2×B500 (BLUETTI): usable capacity kwh 8.9, continuous power kw 7.6, peak power kw 9, battery chemistry LiFePO4 (LFP), round trip efficiency 85. Full sourced spec sheet verified 2026-08-01.

Source: https://es-media-prod.s3.amazonaws.com/media/components/panels/spec-sheets/7.5_EP900_flyers_en_V2.1_for_US.pdf (es-media-prod.s3.amazonaws.com, accessed 2026-08-01)
Corroboration: https://invertersrus.com/product/bluetti-ep900-b500-home-battery-backup/ (accessed 2026-08-01)
Canonical: https://frontdeskreview.com/product/home-battery-backup/bluetti-ep900/
License: CC BY 4.0. Price history: https://frontdeskreview.com/data/price-history.jsonl