Quick answer: FlashFish SR5000 is a 230V, 50Hz home energy storage system documented for European and UK-style electrical contexts. The product database lists 5120Wh capacity, 2400W rated off-grid output, LiFePO4 chemistry, grid-connected and off-grid interfaces, and qualified-technician installation requirements. It should not be treated as a U.S. plug-in portable power station.
Regional note: U.S. availability and U.S. electrical compatibility are not provided by the product database. This page retains its UK topic but does not present SR5000 as a U.S. purchase recommendation.
Verified FlashFish SR5000 records
| Capacity | 5120Wh, 51.2V, 100Ah |
|---|---|
| Battery | LiFePO4; more than 6,000 cycles at 25 degrees C |
| Grid record | 230V, 50Hz; documented grid range 184-253V |
| Rated off-grid output | 2400W |
| Maximum output record | 3600W for 10 seconds |
| PV input record | Two inputs, up to 1000W each; maximum 100V DC |
| Communications | WiFi, Bluetooth, and RS-485 |
| Ingress record | IP65 |
| Dimensions | 520 x 181 x 715mm |
| Weight | 59 +/- 2kg |
These values come from the local FlashFish product database extracted from the SR5000 manual. Original installation documents should be checked again before a listing-critical or installation-critical decision.
Installation is not a do-it-yourself task
The SR5000 source notes require grounding and say installation and maintenance must be performed by qualified technicians. They also require at least 150mm clearance around the top and rear for heat dissipation. A product page cannot replace site assessment, wiring design, protective-device selection, local approval, or commissioning.
UK government guidance says owners must notify the relevant Distribution Network Operator when installing battery storage and that the installer must determine whether connection is notify-after-installation or apply-before-installation. Review the current GOV.UK energy-device registration guidance.
Do not promise tariff savings
A battery can shift when stored energy is used, but savings depend on the tariff, import and export terms, household load, solar generation, installer configuration, system losses, and user behavior. This article does not claim a fixed percentage saving, automatic tariff optimization, or guaranteed payback.
Ofgem describes the Smart Export Guarantee as a route for eligible small-scale generators to receive export payments. Eligibility and tariff terms vary, so check the latest supplier and Ofgem SEG information.
Questions for the installer
- Is this exact variant approved for the property voltage, frequency, grid connection, and location?
- Which DNO process and building requirements apply?
- How will grounding, isolation, over-current protection, and shutdown be handled?
- Does the proposed PV array stay within both input channels and the 100V DC maximum?
- What monitoring functions are available in the installed configuration?
- What commissioning, maintenance, warranty, and emergency documents will be supplied?
Frequently asked questions
Is FlashFish SR5000 a portable power station?
No. The database classifies it as home energy storage, with grid-connected and off-grid interfaces and qualified-technician installation requirements.
Can FlashFish promise a 30% to 50% bill reduction?
No. The product database does not provide a verified savings percentage, and real results depend on the property, tariff, generation, configuration, and use.
Can U.S. shoppers install this 230V model?
The product database does not provide U.S. availability or U.S. compatibility. Do not infer compatibility from this UK-focused article.
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