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Free shipping over £150*
Free shipping over £150*

Sync Energy Flow 3 Batteries 15.4kw SEFB512G3

Original price £4,117.45 - Original price £4,117.45
Original price
£4,117.45
£4,117.45 - £4,117.45
Current price £4,117.45

The Sync Energy Flow HEMS modular battery system is a flexible, future-ready solution for home and light commercial use. Each 5.1kWh unit can be stacked in up to four-module configurations, delivering up to 35.84kWh. With 90% DOD, IP65 rating, and integrated fire suppression, it offers safe, reliable performance. Its plug-and-play connectors, adjustable base, and no complex wiring ensure fast, hassle-free installation. The intuitive Sync Energy app provides full visibility and control over energy usage, flow, and storage. Tariff Sense shows real-time energy costs and savings, while Auto Solar Charging uses only excess solar to power EVs. Available in packs of one to four, it's scalable to grow with customer needs. Installers benefit from simple commissioning, app-based handover, and job history tracking. Whether you're starting small or enhancing an existing system, Sync Energy helps deliver smarter, more sustainable energy management.

Nominal Voltage (V) 51.2
Operating Temperature (Charge) (Co) Integrated heating below 5
Operating Temperature (Discharge) (Co) -20 to +60
Ambient Temperature (Co) -15 to +55
Relative Humidity (%) 65±20
Charging Current (kW) 3.6
Recommended Charging Current (A) 50
Maximum Charge Current (A) 100
Battery Voltage Range (V) 44.8 - 56.2
Max. Charge/Discharge Power (kW) 3.6
Max. Charge/Discharge Current (A) 80
Battery Type LiFePo4 (Lithium Ferrous Phosphate)

We hold a substantial amount of stock across our most popular products and ranges. Due to the wide variety of finishes and configurations we offer, some items may occasionally need to be sourced from our suppliers. However, as we receive daily deliveries from all major suppliers, this rarely causes any delay.

  • Typical dispatch within 4–6 working days.
  • If your order includes multiple items and one or more need to be sourced, your full order will be dispatched once all items are ready.

Zone 1

England, Wales & Parts of Scotland

Orders Above £150 : FREE, Orders Below £150 : £8.00, Small Orders (below £75) : £6.00

Zone 2/Zone 3/Zone 4

Scottish Highlands & Scottish Islands, Northern Ireland, Channel Islands, Isle of Wight, Isle of Scilly and Isle of Man

Orders Above £150 : £16.00, Orders Below £150 : £12.00

For delivery to Northern Ireland, Channel Islands, or Hong Kong, click here for more information.

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