No. Kit-only SKUs are completely turnkey except for the cells. Any standard prismatic LiFePO4 cells matching the enclosure dimensions and terminal specifications (e.g. 280–314 Ah, 356 Ah, or 628 Ah) will fit the respective case. Buying cells bundled with the kit ensures matched batches and single-shipment logistics, but it is not a condition of hardware warranty.

Each kit is engineered around standard prismatic LiFePO4 cell form factors and terminal types: 280–314 Ah cases fit standard single-stud cells (e.g. 280K, 304 Ah, MB31 314 Ah) for a 14.3–16.1 kWh pack. 356 Ah cases are tailored for 356 Ah cells (e.g. LF356) for an 18.2 kWh pack. 628 Ah cases are built specifically for extra-large 628 Ah cells (e.g. MB56) for a 32.15 kWh pack. Always verify cell dimensions and terminal style before ordering.

Yes, in lead-acid or voltage-based mode: set maximum charge voltage to 55.2 V (3.45 V per cell), 150 A charge current, 150 A discharge. The smart BMS provides full autonomous protection against over-charge, over-discharge, over-current, and abnormal temperature regardless of whether the inverter communicates with it. The battery screen and app continue to display real-time cell voltages and live SOC.

Yes. Prismatic LiFePO4 cells naturally expand and contract as lithium ions move during charge and discharge cycles. Proper mechanical compression (approx. 300 kgf across the cell stack) prevents internal electrode delamination, reduces capacity degradation, and ensures cells achieve their rated 6,000+ cycle life. Every Gobel Power kit includes integrated compression plates, heavy-duty tie rods, and FR4 insulation to maintain uniform, calibrated pressure.

Yes, provided all parallel packs share the same nominal voltage, capacity, and cell chemistry (never mix different capacities like 314 Ah with 356 Ah). Maximum parallel scaling depends on the BMS platform: JKBMS supports up to 16 packs in parallel (up to ~256 kWh on 314 Ah, or 514 kWh on 628 Ah); PCBMS supports up to 63 packs in parallel (up to ~1 MWh+) for commercial or microgrid storage. Fully charge all packs before connecting in parallel.

All BMS units include a 1-year hardware warranty and direct Gobel Power technical support for setup and inverter protocol matching. For firmware: JKBMS firmware is developed and maintained by JK; PCBMS firmware is maintained directly by Gobel Power engineering, allowing rapid protocol updates and dedicated long-term firmware support.

Yes. The enclosure and BMS represent roughly one-third of total build cost, while the 16 cells account for the rest. Building with a DIY kit provides three major benefits: Cost savings: avoids factory assembly labor and high shipping surcharges for heavy pre-built batteries; Transparency: you choose and verify your own cell grade and batch; 100% Repairability: every component can be individually inspected, serviced, or upgraded over time.