Energy Storage Batteries

Rack Battery 50–500kWh: Cabinet ESS Platform

This rack battery platform clusters from 50kWh to 500kWh per bank, built from brand-new grade-A LFP cells. Each rack battery ships with BMS, certification dossier and container-loading documentation.

Rack battery container package staged for export at the Mars Solar Foshan factory

rack battery Specifications

ModelCustomized Battery Cluster Series
TypeRack-Mounted LFP Battery Bank
Battery Storage50–500kWh
Output Voltage48V–595V (customized cluster)
MOQ1 set — OEM & ODM accepted
CertificatesCE / RoHS · IEC 62619 · UN38.3 · ISO 9001
Payment TermsT/T — 30% deposit, 70% before shipment (50/20 for long-term partners)
Lead Time3–30 days depending on system scale
Warranty25-y solar panels · 10-y inverter · 5–10-y LFP battery · 2-y integration

All systems are quoted by configuration and destination port. Share your load profile and location, and we will return a firm CIF quotation within 24 hours.

  • ✓ Capacity per bank: 50–500kWh, paralleled for multi-MWh plants
  • ✓ Wide voltage window: 48V/51.2V modules up to 595V/840Ah clusters
  • ✓ Brand-new grade-A LFP cells — 100% genuine capacity guaranteed
  • ✓ Integrated BMS with CAN/RS485 for hybrid inverter communication
  • ✓ UN38.3 certified for international shipping
Rack battery wiring, inverter and BMS detail during factory quality control

What the Package Includes

ComponentDetails
LFP Battery CellsBrand-new grade-A cells, 100% genuine capacity, 6,000+ cycles at 80% DoD
Battery Management SystemIntegrated BMS with cell balancing, temperature protection, and communication ports (CAN/RS485)
EnclosureRack-mounted steel enclosure with breakers, busbars, and pre-wired terminals
CablingBattery cables, connectors, and protective accessories for installation
DocumentationUN38.3 test reports, MSDS, and shipping documents for international transport

Retrofits for existing solar plants, telecom backup, and custom BESS builds from 50kWh to multi-MWh.

Product FAQ

How much does a rack battery cost?
Storage typically adds 35–50% of total system cost. Derived from our verified 100kW + 215kWh container reference of CIF $88,000–115,000, installed LFP storage works out around $145–265 per kWh. Send us your load profile and we will return a firm CIF quote within 24 hours.
How long does a rack battery take to pay back?
Under 18 months when it displaces diesel generation, 3–5 years against peak grid tariffs. The LFP bank is rated 6,000+ cycles at 80% depth of discharge — roughly 16 years at one cycle per day.
Which certifications and import approvals apply?
CE / RoHS, IEC 62619 for the cells and UN38.3 for transport, built under ISO 9001 factory QA. Destination paperwork — SONCAP, BPS, SASO or DEWA — is prepared per shipment.
Will these batteries work with third-party inverters?
Yes. The BMS communicates over CAN/RS485 with the mainstream hybrid inverter brands (Deye, Growatt, Voltronic/Axpert-class, and others), and runs unmanaged with any inverter that accepts the battery's voltage window. Send us your inverter model and we will confirm protocol compatibility before shipping.
What is the realistic service life?
LFP cells are rated 6,000+ cycles — one full cycle per day is roughly 16 years of operation. We warrant 5–10 years depending on configuration, with 60–70% capacity guaranteed at year 10. Real-world life depends on depth of discharge and ambient temperature; we size banks so daily cycling stays in the healthy range.
How do I size a rack battery for an existing solar plant?
Start from the load, not the array: multiply your essential night load (kW) by the hours you need autonomy, add 20% margin, and that is your target kWh. A 100kW plant running 30kW of night load for 6 hours needs roughly 220kWh — two of our 100kWh-class clusters with headroom. Send your load profile and we will return a sized proposal.

Rack battery Price & Payback

What moves the rack battery price? Module pricing first: tier-1 modules currently run $0.28–0.48 per watt FOB. Inverter class, mounting type and cable runs come next, and where batteries are included, storage typically adds 35–50% of the total system cost. Sea freight and clearing usually add 20–35% over FOB to reach West African or Southeast Asian ports.

Cost factorTypical figure (2026)
Solar modules$0.28–0.48 per watt FOB, tier-1 supply
Sea freight & landed costTypically +20–35% over FOB to West Africa / Southeast Asia ports
Storage share35–50% of total system cost where batteries are included
Payback3–5 years against grid power; under 18 months when replacing diesel

For a verified reference point: our most-ordered 100kW solar system paired with a 215kWh BESS cabinet quotes CIF $88,000–115,000 to ports such as Lagos or Manila. Every Mars Solar quote is factory-direct: FOB from our Foshan plant or CIF to your port, with the full certification dossier included.

For country-level landed-cost math, read the BESS import and payback guide for Nigeria, and see the 6MW + 20MWh industrial complex project in Nigeria for how the same hardware performs in the field. The IEA solar PV market track is a good neutral reference for global module price direction.

Need a Custom Configuration?

Send us your load profile and location — we return a firm CIF quotation within 24 hours.