ET Series 1–10KRS Rack Online UPS, External Lithium Battery
Long-duration online protection — external LiFePO4 battery racks scale runtime from minutes to hours for 1–10kVA loads.
Product image
- Brand
- HighIdea
- Type
- Online double-conversion UPS (rack, long-duration)
- Typical applications
- Data racks, servers, medical systems, long-runtime requirements
- Models in range
- ET1KRS, ET2KRS, ET3KRS, ET6KRS, ET10KRS
- Category
- UPS Power Supply
For sites that need hours rather than minutes of backup, the ET 1–10KRS pairs the online ET platform with external LiFePO4 battery racks. Runtime scales linearly with pack count, and lithium's fast recharge restores full autonomy quickly after each outage.
Key Features
- Rack-mounted online UPS engineered for long-duration external lithium batteries
- Dual-conversion online design with pure sine wave output
- High-frequency architecture — compact and efficient versus power-frequency alternatives
- 1–10kVA single range covers small server rooms to full racks
- Battery management tuned for LiFePO4 fast-charge characteristics
- Optional SNMP / Modbus / cloud monitoring
Specifications
| Capacity | 1 – 10 kVA |
|---|---|
| Topology | Online double conversion (VFI) |
| Battery | External LiFePO4 packs (LD48V series or compatible) |
| Output voltage | 220 / 230 / 240 Vac |
| Transfer time | 0 ms |
| Form factor | 19-inch rack-mount |
| Communication | RS-232; optional SNMP / Modbus / cloud card |
Specifications subject to the latest factory data. Final configuration is sized against the actual load, backup runtime and site power conditions — this table is for pre-selection only.
Applications
Long-runtime data racks
Where generators are absent or slow to start, hours of lithium-backed autonomy keep racks online.
Medical & lab systems
Clean online power with runtime scaled to the procedure schedule, not the battery chassis.
FAQ
How do I size the battery for a runtime target?
Can it mix with lead-acid batteries?
Related Models
ET1-6KRS Series
1–6kVA online rack platform with modular lithium battery selection — choose the runtime by choosing the packs.
View detailsET6/10KRS PRO Series
6–10kVA online rack UPS purpose-engineered for long-duration lithium backup — single-phase or three-phase input, single-phase output.
View detailsLD48V Series
New-production Class A cells, built-in BMS, rack format — the lithium pack that upgrades any 48V UPS or telecom power system.
View details