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Deye SE-G5.1 Pro-B LiFePO4 Battery

Deye SE-G5.1 Pro-B LiFePO4 Battery

Brand: Deye Model / Series: SE-G5.1 Pro-B

Deye 51.2 V, 5.12 kWh lithium iron phosphate battery for low-voltage hybrid inverters, expandable in parallel.

The Deye SE-G5.1 Pro-B is a 51.2 V low-voltage lithium iron phosphate battery with a nominal energy of 5.12 kWh. It is designed for use with low-voltage hybrid inverters such as Deye's SG04LP1 range.

Deye states that multiple packs can be connected in parallel to expand storage capacity.

Our Core Features

LiFePO4 chemistry
51.2 V nominal, 100 Ah
Parallel expansion for larger storage
Designed for low-voltage hybrid inverters

Suitable Applications

Low-voltage hybrid systems Off-grid systems Home and office backup

Technical Specifications

ManufacturerDeye
ModelSE-G5.1 Pro-B
ChemistryLiFePO4
Nominal voltage51.2 V
Nominal capacity / energy100 Ah / 5.12 kWh
Operating voltage43.2–57.6 V (Deye Pro-B datasheet)
Parallel connectionUp to 64 packs (per Deye)
Protection ratingIP20

Product information is summarised from documentation published by the manufacturer and may change between versions and regions. Contact Si Green Energy to confirm the exact model, availability and current specifications before purchase.

Frequently Asked Questions

01.What size of solar system do I need?

It depends on how much electricity you use, when you use it, and the space available. We review your electricity bills and loads during a site survey and size the system accordingly.

On-grid systems work with the utility supply and need no batteries. Off-grid systems run independently with batteries. Hybrid systems combine both, so they can keep essential loads running during power cuts. We recommend the right type after understanding your needs.

Yes. Panels still produce electricity on cloudy days, although output is lower than in full sunshine. Systems are sized with seasonal variation in mind.

Mainly regular cleaning of the panels to remove dust, and periodic inspection of connections, protection devices, inverters and batteries. We offer maintenance and inspection services.