SEPLOS MASON-280L-N 16.08 kWh complete battery system

The current warehouse version uses sixteen GF314Ah LiFePO4 cells in a 1P16S arrangement: 51.2 V nominal voltage, 314 Ah capacity and 16.076 kWh nominal energy. The delivery includes the complete battery, smart BMS, active balancer, aerosol fire-suppression module, cables and accessories, and a wooden shipping crate.

Key benefits

• thermally stable LiFePO4 chemistry for solar storage, home backup and off-grid systems,
• active cell balancing and BMS-controlled protection functions,
• CAN and RS485 communication for supported 48V inverters,
• LCD status display, service diagnostics and parallel expansion capability,
• integrated aerosol fire-suppression module,
• cables, accessories and wooden transport crate included.

Current warehouse-version data

Documentation note: the current GF314Ah / 16.076kWh configuration is confirmed by the manufacturer’s latest EU-stock information. The latest available MASON-280L technical sheet still covers the older 280Ah version and states dimensions of 817 × 412 × 267 mm, a product weight of 113 ± 3 kg and 6,000 cycles. We therefore publish those mechanical figures only as reference data pending the updated 314Ah sheet. The shipping weight used by the store is 118 kg including transport packaging.

Stock and delivery

13 units in the German EU warehouse. Delivery is by pallet and shipping to the Czech Republic is charged separately. The exact inverter model, communication protocol and firmware compatibility must be verified before ordering.

Warranty

The manufacturer provides a five-year free warranty. During years 5–10 the warranty is paid: replacement parts are supplied free of charge, while the buyer pays freight, service labour and all other related costs. This is not a fully free ten-year warranty.

Installation and safety

Installation, electrical protection, cable sizing, earthing, commissioning and communication setup must be completed by a suitably qualified professional. Use only in a dry indoor technical area. Follow the installation manual and applicable local electrical and fire-safety rules.

Use and system sizing

The battery stores photovoltaic surplus for later consumption, such as evening or overnight use, a more expensive tariff period, or as part of a backup system. Actual usable energy and available power depend on the permitted SOC range, inverter, temperature, load profile and complete system design. Capacity and parallel-unit quantity must not be selected from the kWh figure alone.

Compatibility and communication

CAN and RS485 are physical interfaces. Compatibility must be verified for the exact inverter model, firmware, battery protocol, communication cable, voltage limits and the current 314Ah batch. Give us the inverter details before ordering; closed-loop BMS-to-inverter communication is not promised without confirmation.

Installation and commissioning

1. Installation must be carried out by a qualified person according to the design, current SEPLOS documents and local regulations.
2. Suitable handling equipment is required; the older reference version weighs 113 ± 3 kg and actual shipping weight of the current batch is confirmed before dispatch.
3. Before connection verify polarity, DC protection and isolation, conductor sizes, grounding and communication wiring.
4. Configure the inverter and BMS for the specific batch, then verify communication, charging, discharging, balancing and alarm states.
5. Parallel operation is permitted only in the manufacturer-approved topology and with equal connection conditions.

Safety and service

LiFePO4 is a stable battery chemistry, but the pack contains hazardous short-circuit energy. Do not dismantle it, bypass the BMS or other protection, or expose it to water, fire, excessive heat or mechanical damage. The aerosol fire-suppression module is an additional integrated feature; it does not replace correct electrical protection, room fire planning or professional installation.

Downloads

WodaSign directly hosts the reference MASON-280L specification, CE/EMC, IEC 62619 and RoHS certificates, and the complete SEPLOS Warranty Agreement 2026. The 280Ah reference sheet is clearly distinguished so that its capacity figures are not mistaken for the current GF314Ah stock version.