The Terli Battery 3000W Emergency Power System for Building runs on a 51.2V LiFePO4 platform across three capacity variants. All values are measured at 25°C unless noted.
| Parameter | 48V-100Ah | 48V-150Ah | 48V-200Ah |
|---|---|---|---|
| Rated Voltage | 51.2V | 51.2V | 51.2V |
| Energy | 5.12 kWh | 7.68 kWh | 10.24 kWh |
| Std. Charge Current | 0.2C | 0.2C | 0.2C |
| Max Charge Current | 1C (25°C) | 1C (25°C) | 1C (25°C) |
| Charge Cut-off Voltage | 58.4V | 58.4V | 58.4V |
| Std. Discharge Current | 0.5C | 0.5C | 0.5C |
| Max Discharge Current | 1.5C (25°C) | 1.5C (25°C) | 1.5C (25°C) |
| Discharge Cut-off Voltage | 43.2V | 43.2V | 43.2V |
| Discharge Method | CC / CP / VP | CC / CP / VP | CC / CP / VP |
| Charge Temp. Range | 0–50°C | 0–50°C | 0–50°C |
| Discharge Temp. Range | -20–55°C | -20–55°C | -20–55°C |
| Cycle Life | 6,000+ @ 80% DoD | 6,000+ @ 80% DoD | 6,000+ @ 80% DoD |
| Design Life | 10 years | 10 years | 10 years |
| Enclosure Protection | IP65 | IP65 | IP65 |
| Communication Interface | RS485 / RS232 / CAN | RS485 / RS232 / CAN | RS485 / RS232 / CAN |
| Display | LCD | LCD | LCD |
| Weight | 50 kg | 65 kg | 80 kg |
| Shipping Voltage | 48–51V | 48–51V | 48–51V |
| Shipping SOC | 30%–50% | 30%–50% | 30%–50% |
Storage humidity tolerance: 5%–95%. Short-term storage temperature: -10–45°C; long-term: -10–40°C.
Each unit in the Terli Battery 3000W Emergency Power System for Building carries an independent BMS that monitors every cell individually. The system enforces real-time protection across six failure modes: overcharge, over-discharge, short circuit, over-current, over-temperature, and cell imbalance.
Cell-level monitoring: The BMS tracks voltage, current, and temperature per cell — not at pack level — catching faults before they cascade.
Physical multi-layer protection: The enclosure construction is waterproof, shockproof, anti-explosion, and fire-resistant; no single-point failure reaches the cells.
Extreme safety test compliance: Under crush, short circuit, and thermal abuse testing, the battery produces no fire, explosion, or electrolyte leakage.
LiFePO4 chemistry: Iron-phosphate cathode chemistry eliminates thermal runaway risk present in NMC and NCA cells — the stable crystal structure holds under overcharge conditions.
Grade A cell selection: Every cell passes voltage and internal resistance screening before assembly; rejected cells never enter a finished pack.
BMS communication output: Real-time BMS data streams over RS485, RS232, or CAN — enabling fault alerts to integrate directly into building management systems.
Low internal resistance: The pack sustains continuous high-current charge and discharge without heat accumulation at the cell-to-busbar interface.
The Terli backup power system replaces lead-acid banks with a chemistry that delivers more capacity, longer life, and lower maintenance at the same footprint.
No memory effect: Charge or discharge at any state without running a full cycle first — critical for emergency systems that spend most of their life at standby.
One-third the weight: A 200Ah LiFePO4 pack weighs 80 kg versus approximately 240 kg for an equivalent lead-acid bank — reducing floor-load requirements and installation labor.
Two-thirds the volume: The same 10.24 kWh fits into two-thirds the cabinet space of lead-acid, freeing room in electrical closets and server rooms.
6-month storage without maintenance: Extremely low self-discharge means the battery holds charge through extended standby without scheduled top-up cycles — unlike lead-acid, which sulfates during idle periods.
Fast recharge: The 1C maximum charge rate returns the 200Ah pack to full capacity in under one hour — minimizing vulnerability windows after a discharge event.
Scalable capacity: Up to 32 units connect in parallel at 48V, scaling the building energy storage system from 5.12 kWh to over 320 kWh on a single bus without additional switchgear.
Plug-and-play commissioning: Standard 19-inch rack form factor with pre-assembled enclosure reduces site installation time to under two hours per unit.
The emergency power system for building deployment clears customs and passes site inspections across all primary global markets. Certification documentation ships with every order.
CE-EMC: European Union market access — covers electromagnetic compatibility and electrical safety for building installations across all EU member states.
TUV: Independent third-party safety and quality verification — required by procurement teams in Germany, Austria, Switzerland, and broader European projects.
UN38.3: International lithium battery transport certification — mandatory for air and sea freight of lithium cells; ensures compliant global shipment.
UL1642: US component-level lithium cell safety standard — satisfies US distributor qualification and end-user liability requirements.
IEC62619: International stationary energy storage safety standard — the primary compliance benchmark for commercial and industrial battery installations.
KC: South Korean national certification — required for import and sale in the Korean market.
CB: International reciprocal electrical safety certification — accepted in 57 member countries, reducing duplicative testing costs for multi-market distributors.
ISO: Quality management system certification covering the full production process from cell intake to finished pack.
3C: China Compulsory Certificate — required for domestic China market sale and for certain export documentation.
RoHS / MSDS: Hazardous substance compliance and material safety documentation — standard requirements for EU import and international freight.
System integrators specify this backup power system knowing it communicates natively with inverters already installed at their project sites. The BMS outputs over RS485, RS232, and CAN — the three protocols covering every major hybrid and off-grid inverter on the market.
Verified compatible inverter brands include:
Growatt
Victron Energy
SMA
GoodWe
Solis / Ginlong
Sofar Solar
Deye
Sungrow
LuxPowerTek
Voltronic Power
Studer
Schneider Electric
EPEVER
Must
Morningstar
Selectronic
Axioma
Both off-grid and on-grid system configurations are supported. The 48V bus architecture allows parallel expansion up to 32 units within the same inverter ecosystem — no additional communication gateway required. Standard 19-inch rack mounting integrates into existing electrical cabinet infrastructure without modification.
Contact Terli’s technical team to confirm protocol mapping for inverter firmware versions not listed above.
This system addresses energy continuity requirements across six deployment categories — from single-building backup to multi-site communication infrastructure.
Commercial and residential building backup: The primary use case. The 3000W output sustains lighting, security systems, elevators, and critical loads during grid outages. IP65 enclosure and -20°C discharge tolerance allow installation in basement electrical rooms and outdoor equipment cabinets.
Solar PV storage: The system integrates into both off-grid and on-grid solar installations, storing daytime generation for nighttime or peak-tariff consumption. Compatible with all major inverter brands already deployed in solar projects.
Telecom and communication base stations: Low self-discharge and a 10-year design life reduce maintenance visits at remote sites. RS485/CAN communication enables remote state-of-charge monitoring without on-site inspection.
Industrial facility backup: Factory control systems, conveyor lines, and process equipment require uninterrupted power during utility transitions. The 1.5C maximum discharge rate delivers burst current for motor loads without voltage sag.
Wind power storage: Pairs with wind generation systems at off-grid sites where solar irradiance is insufficient.
Solar street lighting: Modular capacity scaling allows right-sizing for single-pole or multi-pole lighting circuits, from 5.12 kWh to larger parallel arrays.
The -20°C to +60°C discharge operating range makes this building energy storage solution viable in Middle Eastern heat, Northern European winters, and high-altitude sites alike.
Terli New Energy Technology operates as an official cooperative supplier of China State Grid — the world’s largest utility operator and one of the most demanding battery qualification frameworks in the industry.
The production chain runs entirely in-house. Core components — BMS boards, enclosures, and cell assemblies — are developed and manufactured by Terli’s own R&D team, not sourced from third-party vendors. This vertical integration gives the company direct control over specification conformance at every production stage.
The 9-stage production process enforces quality gates before any unit reaches packaging:
Cell incoming inspection — voltage and internal resistance screening
Outer box preparation
Cell assembly
Signal line and BMS integration
BMS installation and configuration
Charge and discharge cycle testing
BMS fault detection verification
Enclosure sealing
Packaging and pre-shipment inspection
The team holds deep experience in wireless communication room power systems — an application category where battery failure causes immediate service outages and where compliance documentation is non-negotiable. That background shapes the production discipline applied to every building backup unit shipped.
Certifications held across the product line include CE, TUV, UN38.3, KC, ISO, CB, and 3C — verified by independent testing bodies, not self-declared.
Terli accepts OEM and ODM orders for the emergency power system for building product line. Custom branding covers logo, enclosure labeling, color, and documentation. Prototype design is available for ODM projects requiring enclosure or BMS configuration changes.
Sampling process: Pay freight and sample cost upfront. The sample cost applies as credit toward the first qualifying bulk order. Sample units ship within 3–5 days of payment confirmation — enabling technical validation before commitment.
MOQ flexibility: Buyers who cannot reach standard MOQ can source from available stock items or participate in group sourcing. Contact Terli’s sales team for the current prompt-goods list.
Bulk pricing: Order pricing scales with volume. The sales team quotes the best available price based on confirmed order quantity — no published tiered pricing, since project sizes vary.
Order placement options:
Email purchase order
Proforma invoice issued by Terli
Alibaba Trade Assurance (escrow-protected payment)
Logistics: Terli works with freight forwarders who specialize in lithium battery shipments. They handle UN38.3 documentation, dangerous goods declarations, and multimodal routing — reducing customs clearance delays for distributors importing into CE, KC, and other regulated markets.
OEM brand owners gain access to a product already certified across CE, TUV, UN38.3, KC, CB, ISO, and 3C — eliminating the cost and delay of independent certification for each new market.
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
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