CALB · utility-scale
CALB 20ft 6.25MWh+ High-Voltage Liquid-Cooled Container ESS (ZHIJIU 2nd generation)
announced20 ft containerDC blockliquid-cooledLFP · 392 AhBNEF Tier 1
Everything below comes from what CALB publishes about the 20ft 6.25MWh+ High-Voltage Liquid-Cooled Container ESS (ZHIJIU 2nd generation): the datasheet, the product page and press releases. Where a figure is not published, the field says so — we do not estimate.
Variants
Energy figures are nominal (beginning of life) as published by the manufacturer. One model, several duration options — the same enclosure with different power ratings.
| Variants | Energy | Power | Duration |
|---|---|---|---|
| 6.25 MWh+ | 6.25 MWh | not published | not published |
Specifications
| Cell chemistry | LFP |
|---|---|
| Cell capacity | 392 Ah |
| Cell configuration | not published |
| Cell supplier | not published |
| Form factor | 20 ft container |
| Block type | DC block |
| PCS integrated | no |
| DC voltage | not published |
| Cooling | liquid-cooled |
| Ingress protection | not published |
| Operating temperature | not published |
| Dimensions (L × W × H) | not published |
| Weight | not published |
| Energy density | not published |
| Round-trip efficiency | 95% |
| Cycle life | 8,000 · '循环8000cycles+' on CN product page; test conditions not published |
| Calendar life | not published |
| Warranty | not published |
| Fire suppression | pack-level fire suppression |
| Generation | ZHIJIU 2nd generation |
| Announced | 2025-05 |
Certifications
CE
Key facts
- Paired on CALB's site with the 392 Ah cell in 1P104S double-row large-module packs (4th-gen liquid cooling, pack temperature spread ≤2.5 °C)
- Area energy density 424 kWh/m² in a 20ft high-cube; supports back-to-back and side-by-side placement
- DC-side efficiency ≥95%; 8,000+ cycles; IP67 packs with sand and salt-fog protection
- CE certification announced at EES Europe 2025; 2nd generation (2026) claims ~25% more capacity and ~40% fewer components than previous generation
- Rated power, voltage window, dimensions and weight not published
What CALB does not publish for this model
These fields are empty because no public datasheet or release states them. That is information too: ask for these numbers before you shortlist.
Cell configurationCell supplierDC voltageIngress protectionOperating temperatureDimensions (L × W × H)WeightEnergy densityCalendar lifeWarranty
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Sourcing quote for CALB 20ft 6.25MWh+ High-Voltage Liquid-Cooled Container ESS (ZHIJIU 2nd generation)
Coloprice is published by Dream View, a China-sourcing company. For commercial-scale projects we buy BESS containers factory-direct — verified manufacturer, certification review, pre-shipment inspection, export and freight — for a flat 10% fee.
Sources: CALB — 储能 solutions & products (CN) · CALB news — EES Europe 2025 premiere · CALB news — ZHIJIU series at EES Europe 2026