1. This is 48V Rack Battery, with Grade A+ quality LiFePO4 Battery;
2. One battery can be equipped with one set of connection cables. If needs, pls contact us online. Thank you!
3. If buy 4pcs, we can match with 4pcs Battery with 4 set cabels for parallel connections.
4. Before delivery, we will test all Batteries in Terli factory and ensure for high qulity to you!
The Terli 48V backup power system uses Grade A+ LiFePO4 cells in a 19-inch rack-mount form factor. This LiFePO4 rack battery targets residential energy storage from 5.12kWh to 10.24kWh per unit.
| Parameter | Specification |
|---|---|
| Nominal Voltage | 48V (51.2V LiFePO4) |
| Capacity Options | 100Ah / 150Ah / 200Ah |
| Energy per Unit | 5.12kWh / 7.68kWh / 10.24kWh |
| Cell Chemistry | Grade A+ LiFePO4 (3.2V cells) |
| Form Factor | 19-inch rack-mountable |
| Max Stack | Up to 6 units |
| Configuration | Parallel expandable |
| Operating Temperature | -20°C ~ +60°C |
| Noise Level | < 30 dB |
| Communication Ports | RS485, CAN, RS232, Bluetooth, Dry contact |
| Indicators | SOC / ALM / RUN |
| Weight vs. Lead-Acid | ~40% lighter at equivalent capacity |
Each unit ships with connection cables. Connect 4 or more units with parallel cables for higher capacity — no additional hardware required.
For BMS protection features and inverter compatibility, see the next section.
The built-in Smart BMS monitors temperature, current, voltage, SoC, and SoH in real time. This keeps the 48V backup power system operating safely under all load and environmental conditions.
BMS Protection — 9 Layers:
Over-charge protection
Over-discharge protection
Over-current protection
Over-voltage protection
Overload protection
Short circuit protection
High and low temperature protection
Cell balancing system
SoC and SoH continuous tracking
The BMS battery management system self-optimizes continuously, extending service life without manual intervention.
Compatible with 99% of Inverter Brands:
Deye, Growatt, Victron Energy, SMA, Solax Power, GoodWe, Schneider Electric, SOFAR, Megarevo, Luxpowertek, SRNE, ATESS, Hypontech, EPEVER, MUST, Voltronic Power, and more.
Communication runs over RS485, CAN, RS232, and Bluetooth — matching the protocol requirements of these brands out of the box.
The 48V backup power system delivers 5000+ cycles at 80% DoD in home energy storage battery deployments. Select configurations reach 8000 cycles and a 10-year design life.
Key performance metrics:
Low self-discharge — Holds capacity for up to 6 months in storage without maintenance charging.
High-current stability — High flat-voltage discharge and low internal resistance maintain output under heavy loads.
100% depth of discharge — Every rated kWh remains available, unlike lead-acid units that limit usable capacity to 70%.
2x power output — High discharge rate delivers twice the power of an equivalent lead-acid unit, with more than 95% energy capacity maintained.
Fast charge efficiency — Superior charge/discharge efficiency reduces system downtime between charge cycles.
Graphene heat dissipation — Manages thermal buildup during high-rate discharge without increasing noise.
The Smart BMS drives these cycle results by continuously balancing cells and preventing overuse conditions.
Q1: What products do you offer?
Our main products is Lithium Ion Batteries. Now we can offer Home Energy Storage, Telecom Battery， Battery Pack，Lithium Battery 24V 48V etc.
Q2: How can I get a sample to check your quality?
If you need sample to test, please pay for the freight and sample cost. And the sample cost will be returned back to you after you place an bulk order more than our MOQ.
Q3: Can I have the products with my own logo?
Yes. We can offer both OEM and ODM service with prototype design and small MOQ.
Q4: How long can I expect to get the sample?
The samples will be ready for delivery in 3~5days after we receive the payment.
Q5:Can you give me a discount?
Yes, based on wholesale service, we have better discount for bigger quantities. We will quote you the best price based on your order quantity.
Q6. What are the advantages that distinguish from others?
1. Official cooperative supplier of China State Grid Official
2. With professional product development team
3. Rich experience in wireless computer room
4. With superior energy storage solution
Q7. How to do if I can’t reach your minimum order quantity?
Do not worry about that. If you can’t reach MOQ for each item, we suggest you refer to our goods in stock and group sourcing items. We also can send you the latest list of the prompt goods for your reference.
Q8: How to make order?
Send us your purchase order by email , or ask us to send you a proforma invoice for your order, or start an order on Alibaba Trade Assurance
Terli, a dedicated LiFePO4 battery manufacturer, runs a 7-stage automated production line from cell preparation through final packing. Every unit undergoes 100% factory testing before shipment.
Cell consistency:
A fully automatic separator process ensures uniform voltage, internal resistance, capacity, and discharge platform across every Grade A+ cell in the pack.
Structural integrity:
An internal steel holder fixes all cells for shock resistance. A Seiko IC protection chip drives the protection board, delivering stable performance under overcharge, overdischarge, overcurrent, overvoltage, and short circuit conditions.
16+ QC test procedures include:
Slurry viscosity and coating surface density
Electrode thickness and diaphragm heat contraction
Charge/discharge cycle and temperature performance
Vibration, drop, and plug wire tension tests
Appearance inspection and safety laboratory testing
Every 48V backup power system unit leaves the factory only after completing this full test sequence — the certifications held reflect these documented manufacturing standards.
The 48V backup power system holds all major LiFePO4 battery safety certifications for residential installation and cross-border shipment.
Certifications held:
CE — EU market compliance
TUV — Component and system safety validation
UN38.3 — International transport safety (air, sea, road)
KC — South Korea market compliance
CB — Multi-market mutual recognition
ISO — Quality management system
3C — China compulsory certification
MSDS — Material safety data for customs and logistics
Structural safety features:
LiFePO4 chemistry — Non-explosive and non-combustible under impact, overcharge, or short circuit
Iron casing — Stronger impact resistance than plastic housing
Laser welding — Tight aluminum-to-cell bond for rough and mobile environments
Plastic steel belt — Fixes cells against movement and vibration during transport and use
Safety tests passed: short circuit, crush and squeeze, nail penetration, thermal abuse, over-charge, over-discharge, high and low temperature, and drop tests.
The Smart BMS and structural design work together to meet these certification standards.
The 48V backup power system covers residential backup power, off-grid solar, and commercial UPS scenarios within a single rack-mount platform.
Residential and home solar
Stores energy from PV panels for on-grid, off-grid, or hybrid solar energy storage system deployments. Connects directly to home appliances as an emergency backup during grid outages. Compatible with 99% of hybrid inverter brands for drop-in deployment.
Commercial and industrial UPS
Supports telecom base stations, CATV systems, computer server centers, and medical instruments where continuous power is critical.
Mobile and specialty applications
Fits RV/motorhome, marine/yacht, and golf cart deployments. Also supports electric bikes and scooters where a 48V platform applies.
Scalable system design
Stack up to 6 units or connect in parallel to match any residential or small commercial capacity requirement. No system redesign needed as energy demand grows.
Terli offers full OEM and ODM services on the 48V backup power system. Customization covers logo, nameplate, packaging, and hardware design — all built on a certified OEM LiFePO4 battery platform.
Custom branding:
A professional product development team handles prototype design with small MOQ support. Apply your brand identity to both product and packaging.
Sample program:
Receive a prototype in 3–5 days after payment confirmation. The sample cost credits back when your bulk order exceeds MOQ.
Volume pricing:
Discount tiers scale with order quantity. Request a quote based on your target volume.
Optional hardware add-ons:
LCD display panel
Anti-theft function
Bluetooth app monitoring
Certification coverage:
International certifications already held by this custom battery pack manufacturer apply to OEM products — reducing your compliance timeline to market entry.
Terli operates as a direct lithium battery supplier with 9 overseas warehouses for fast regional delivery of the 48V backup power system.
Warehouse locations:
| Region | Locations |
|---|---|
| Europe | Germany, Poland, Romania |
| Americas | United States |
| Asia-Pacific | Philippines, Vietnam |
| Middle East | Iraq |
| China | Main warehouse |
Stock orders ship within 5 days. Standard production orders ship within 7 days of payment confirmation.
Trade and payment terms:
Delivery: FOB, CFR, CIF, EXW
Payment: T/T, L/C, D/P, D/A, PayPal, Western Union, Credit Card, Cash, Escrow
After-sales response SLA:
| Day | Response Time |
|---|---|
| Weekday (9:00–22:00 Beijing) | ≤1 hour |
| Saturday | ≤2 hours |
| Sunday | ≤4 hours |
24/7 online support available outside standard hours.
Warranty: Full repair or replacement within warranty. Post-warranty spare parts supplied at cost price.
Energy storage battery wholesale pricing tiers scale with order quantity. Below-MOQ buyers can access stock goods and group sourcing options.
Order options: Email PO, proforma invoice
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