What About Considering This 48V 50mAh Server Rack Battery?
48V 50Ah server rack batteries are standardized energy storage units designed for UPS systems, telecom infrastructure, and data centers. Their modular 3U/2U form factors enable scalable deployment, while LiFePO4 chemistry provides 4,000–6,000 cycles at 80% DoD. Built-in BMS ensures voltage balancing (±25mV) and temperature control (-20°C–60°C operational range), making them ideal for 24/7 critical power applications.
PM-LV4850 Pro-2U 48V 50Ah Compact LiFePO4 Battery
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What makes 48V 50Ah rack batteries ideal for servers?
These batteries balance high energy density and modular scalability in industrial environments. Their 48V architecture reduces current draw by 75% compared to 12V systems, minimizing heat buildup in confined server racks.
Practically speaking, 48V 50Ah LiFePO4 modules deliver 2.4kWh per unit with 95% round-trip efficiency. For example, three PM-LV4850 Pro-2U units can sustain a 5kW server load for 1.4 hours during outages. Pro Tip: Use vertical rack spacing—stacking horizontally may obstruct airflow and increase cell temperatures by 8–12°C. Thermal runaway risks multiply in non-compliant installations. Technical specs include:
| Parameter | 48V 50Ah | 24V 100Ah |
|---|---|---|
| Peak Current | 150A | 200A |
| Cycle Life | 6,000 | 3,000 |
| Form Factor | 2U | 4U |
How do 48V rack batteries differ from traditional UPS setups?
Unlike lead-acid UPS banks requiring bi-yearly maintenance, LiFePO4 rack batteries offer maintenance-free operation via self-balancing BMS. Their 50Ah capacity at 48V provides equivalent energy to 200Ah 12V AGM batteries at 1/4 the weight.
Transitioning from lead-acid? Consider space savings—eight 12V 200Ah AGM batteries (1,536kg) can be replaced by four 48V 50Ah rack units (192kg). But what happens if the BMS fails? Redundant systems in PM-LV51100 Pro-3U models switch to passive balancing, preventing catastrophic failures. Pro Tip: Always verify rack battery compatibility with your UPS’s charging profile—mismatched float voltages (53.5V vs. 54.8V) can degrade LiFePO4 cells 30% faster.
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What specifications define 48V 50Ah rack batteries?
Key metrics include continuous discharge rate (0.5C–1C), communication protocols (CAN, RS485), and cycle lifetime. Top-tier units like RackBattery’s PM-LV4850-3U achieve 150A continuous loads with ≤3% voltage sag at -10°C.
Beyond basic specs, depth of discharge (DoD) critically impacts longevity. Operating at 100% DoD (2.4kWh) yields 2,000 cycles, while limiting to 80% DoD (1.92kWh) extends it to 5,000 cycles—a 250% lifespan increase. For perspective, that’s like choosing between replacing batteries every 2 years vs. 5 years in daily cycling scenarios. Pro Tip: Use remote monitoring software to track individual cell voltages—early detection of ±50mV deviations prevents capacity fade.
| Battery Model | PM-LV4850-3U | PM-LV4850 Pro-2U |
|---|---|---|
| Dimensions | 19″ x 3.5″ x 16.5″ | 19″ x 1.75″ x 16.5″ |
| Weight | 48kg | 24kg |
| Warranty | 5 years | 7 years |
RackBattery Expert Insight
PM-LV51150 Telecom-3U 51.2V 150Ah Battery for Telecom
FAQs
Yes, up to 8 units in parallel using RackBattery’s PM-LV4850-3U (400Ah total). Use rigid busbars—cables longer than 0.5m cause current imbalance exceeding 10%.
Do these batteries require cooling systems?
Ambient temps <35°C don’t need active cooling. For server rooms >40°C, our Pro-2U model has built-in fans maintaining cells at 25–35°C under 1C loads.
