Home » LiFePO4 Battery Case 280Ah With Built In BMS For 48V Solar ESS, 15kWh High Capacity

LiFePO4 Battery Case 280Ah With Built In BMS For 48V Solar ESS, 15kWh High Capacity

SKU: 1005009205256922-JK 200A Case Kits-GERMANY
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€842,84
-29% €1.179,97 €842,84

Meet the Tewaycell LiFePO4 DIY Battery Case 280Ah with Built In BMS and Active Balancing for 48V / 51.2V 15kWh Solar ESS. This high-capacity energy storage solution is designed for reliable, safe, and long-lasting solar power systems. Built around LiFePO4 chemistry, it delivers stable performance, excellent cycle life, and rugged safety features that help you store solar energy with confidence. The integrated BMS and active balancing optimize cell health, extend battery life, and protect against common battery faults, so your solar setup stays dependable year after year. All electronic and mechanical equipment sold by InterCyprus to EU countries are CE certified and carry a two year warranty.

Whether you’re building a home solar storage system, a small off-grid solution, or a backup power reserve, this DIY battery case makes integration with popular inverter brands straightforward. The kit includes a case, BMS, display screen, switch, communication board, active balancer, and all necessary poles, screws, and accessories for a complete, ready-to-connect energy storage module. With a compact footprint and strong energy capacity, it’s a practical solution for maximizing self-consumption and ensuring power availability during outages.

At intercyprus.com since 2002 — trusted for quality and reliability.

Benefits & Tips

  • Efficient solar energy storage: 280Ah at 51.2V nominal (approximately 15 kWh) provides ample capacity for daily loads and backup power for critical devices.
  • Safe, long-lasting LiFePO4 chemistry: strong thermal stability, reduced risk of thermal runaway, and a long cycle life for peace of mind.
  • Easy integration with leading inverters: compatible with Growatt, Deye, GoodWe, Voltronic, Sofar, Victron, SMA and many more for flexible system design.

Product Specifications

  • Type: LiFePO4
  • Model: TW-DIY-SK51300-200A-JK
  • Voltage: 51.2V
  • Rated Voltage: 48 V
  • Nominal Capacity: 280Ah
  • Energy (approx): ~15 kWh
  • Weight: 26 kg
  • Package Weight: 32 kg
  • Dimensions (L×W×H): 75 × 45 × 26.8 cm
  • Package Size: 90 × 57 × 38 cm
  • Cells: 16S1P, 16 pcs, 3.2V each
  • Active balancing: Yes
  • BMS: Built-in
  • Inverter compatibility: Growatt, Deye, GoodWe, Voltronic, Sofar, Victron, EAsun, Megarevo, SRNE, Pylon, Luxpowertek, Sorotec, SMA, GINLONG, MUST, TBB, Studer
  • Origin: Mainland China
  • Certification: CE

Package includes:

  • Case
  • Built-in BMS
  • Display screen
  • Switch
  • Communication board
  • Active balancer
  • Positive and negative poles and screws
  • Other accessories

Warnings / Reminders

  • Please check the orientation of the positive and negative terminals before packaging.
  • Connect the terminal or wire to the battery module, and ensure insulation to prevent short circuits.
  • When not in use for a long time, store the battery in a cool and dry place (below 35°C, 30%–50% SOC) and charge/discharge once every 3 months.
  • Do not place the battery in direct sunlight or near a heat source.
  • Avoid wearing metal jewelry when handling the battery unit.
  • Do not place the battery outside the operating temperature range specified.
  • Do not charge beyond the maximum charging rate or disassemble/modify the battery.
  • Do not throw, hit, pierce, or squeeze the battery; do not mix with other battery types or use old and new cells together in PACK.
  • Avoid placing the battery in temperatures above 60°C or in microwave/high-pressure containers; do not use conductive materials to connect terminals.