CMX Battery: Premium UPS Backup Lithium Battery Manufacturer
A UPS (Uninterruptible Power Supply) provides instant backup power during outages, protecting critical equipment from data loss and damage. Unlike surge protectors or generators, a UPS offers zero-delay power switching through its internal battery system.
Why Lithium Batteries are the Superior Choice for UPS Backup
- Longer Lifespan: Last 5-10x longer than lead-acid batteries.
- Lightweight & Compact: Higher energy density saves space and weight.
- Fast Charging & Efficient: Recharges quickly and operates with minimal energy waste.
- Maintenance-Free: No upkeep required for reliable, long-term performance.
Choose CMX Battery Lithium Batteries for durable, high-performance power protection engineered for seamless UPS integration. Secure your power continuity with our reliable solutions.
UPS Lithium Batteries by System Voltage
Pick the battery by the DC voltage your UPS requires. Every CMX Battery UPS pack uses LiFePO4 cells with a high-rate BMS and lasts 5 to 10 times longer than a lead-acid equivalent.
- 12V — 12V 6Ah UPS lithium battery for compact units and edge devices
- 24V — 24V 9Ah (1.5kVA) and 24V 6Ah (1kVA)
- 36V — 36V 5Ah 12C high-rate pack for telecom cabinets
- 48V — 48V 12Ah (4kVA), 48V 9Ah (3kVA), 48V 6Ah (2kVA)
- 72V — 72V 28.8Ah (4kVA long backup), 72V 12Ah (6kVA), 72V 3Ah (1.5kVA)
- 180V — 180V 9Ah (12kVA) and 180V 6Ah (8kVA) for data centers
Not sure which voltage fits your UPS? Read our UPS lithium battery voltage selection guide, or send us your UPS model and required runtime for a matched recommendation.
UPS Lithium Battery Buyer’s Guide: Voltage, Runtime & Selection
Choosing the right UPS lithium battery starts with matching voltage and runtime to your load. Most single-phase backup systems run on 12V, 24V or 48V LiFePO4 packs, while three-phase sites use 48V rack or higher. Size the battery’s continuous discharge (C-rate) to your inverter’s inrush current — UPS units draw hard the instant grid power fails.
For lithium battery for UPS upgrades, LiFePO4 beats lead-acid on cycle life (3,000–6,000 vs 300–500 cycles), weight and maintenance. The main trade-off is upfront price, which a 5–8 year service life usually recovers.
- Voltage match — 12V / 24V / 48V to the existing UPS inverter
- Capacity (Ah) sized for your target backup minutes, not just watt-hours
- LiFePO4 vs NMC — LiFePO4 wins on safety and cycle life for stationary backup
- Built-in BMS with RS485 / CAN communication for health monitoring
- Drop-in replacement vs rack-mount system for scale-out
Frequently Asked Questions
What voltage UPS lithium battery do I need?
Match the battery bank voltage to your UPS inverter input: 12V and 24V for small single-phase units, 48V for rack and three-phase systems. Check the nameplate before ordering.
Is a lithium UPS battery better than lead-acid?
Yes for most backup roles. LiFePO4 lasts 3,000–6,000 cycles, needs no watering, and weighs far less, so total cost of ownership is lower despite a higher purchase price.
How long does a lithium UPS battery last?
A quality LiFePO4 UPS battery delivers 5–10 years or 3,000+ cycles, roughly 5–10× a typical lead-acid unit under the same duty.
Can I replace a lead-acid UPS battery with lithium?
In most cases yes, provided voltage and BMS/charging profile match. Many LiFePO4 packs are sold as drop-in replacements with built-in protection.
Request a Quote
Tell us your voltage, capacity and application — our engineers respond within one business day.