The Terli 48V 5kWh Powerwall (Helios series) delivers 51.2V nominal voltage across four capacity models, each built on Grade A LiFePO4 cells with 6000-cycle longevity.
| Model | Capacity (Ah) | Energy (kWh) | Max Output (kW) | Weight (kg) | Dimensions L×W×H (mm) |
|---|---|---|---|---|---|
| Helios 3 | 50 | 3.0 | 2.4 | 41 | 350 × 300 × 180 |
| Helios 5 | 100 | 5.1 | 4.8 | 56 | 700 × 580 × 210 |
| Helios 7 | 150 | 7.6 | 7.2 | 81 | 700 × 580 × 210 |
| Helios 10 | 202 | 9.6 | 10.3 | 98 | 700 × 580 × 210 |
| Parameter | Value |
|---|---|
| Nominal Voltage | 51.2V |
| Working Voltage Range | 43.2V – 58.4V |
| Charge Cutoff Voltage | 58.4V ± 1V |
| Discharge Cutoff Voltage | 40V |
| Max Charge Current | 50A |
| Max Discharge Current | 100A |
| Internal Resistance | ≤ 30mΩ |
| Self-Discharge | < 3% per month |
| Cycle Life | 6000 @ 25°C, 80% DOD |
| Parameter | Value |
|---|---|
| Operating Temp (Discharge) | -20°C to 50°C |
| Operating Temp (Charge) | 0°C to 45°C |
| Storage Temperature | -20°C to 60°C |
| Protection Class | IP54 |
| Cell Technology | LiFePO4 |
| Display | LCD |
| Communication | CAN / RS485 (standard); RS232 / SMBus (optional) |
| Parallel Modules | 2 to 14 |
| Cell Config | 15S (off-grid) / 16S (hybrid) |
The Terli 48V 5kWh Powerwall communicates natively with the inverter brands that installers already deploy — no custom firmware, no integration fees, no project delays.
Confirmed Compatible Inverters
DEYE, Luxpower, Goodwe, Growatt, SMA, Solis, Voltronic, and more — all validated through CAN and RS485 communication protocols. RS232 and SMBus are available for less common integrations.
Scale Without Changing the Inverter
Connect 2 to 14 Helios modules in parallel. A single Helios 5 delivers 5.1kWh; 14 units in parallel reach 71.4kWh — all managed by the same inverter. No rewiring the inverter side when a customer wants to expand storage.
Off-Grid and Hybrid Configurations
The 15S cell configuration matches off-grid inverter voltage windows; the 16S configuration targets hybrid inverter charge profiles. One product covers both installation types.
Indoor Wall-Mount Installation
The IP54-rated enclosure suits indoor plant rooms and utility spaces. The Helios 5 footprint (700 × 580 × 210 mm, 56 kg) fits standard wall-mount brackets with an LCD display for on-site state-of-charge monitoring — no separate monitoring hardware required.
Minimal Standby Loss
Self-discharge below 3% per month keeps backup-only installations charged between use cycles without requiring a dedicated maintenance charge schedule.
Every Terli LiFePO4 solar storage battery ships with three independent safety layers — chemistry, BMS, and hardware breaker — so a single component failure cannot cascade into a site incident.
BMS Full Protection Suite
Overcharge protection — disconnects at charge cutoff before cell stress occurs
Over-discharge protection — holds discharge cutoff at 40V to preserve cell health
Over-current and short-circuit protection — triggers within milliseconds under fault conditions
Thermal protection — monitors cell temperature and cuts power before runaway conditions develop
High-voltage protection — additional relay layer for higher-reliability residential deployments
LiFePO4 Chemistry Safety Advantage
Phosphate-based cathode chemistry eliminates the thermal runaway risk inherent in NMC and NCA cells. No cobalt in the cell structure removes the risk of exothermic decomposition under abuse conditions.
Abuse Test Results
Passed short-circuit, drop, nail penetration, impact, crush, thermal shock, overcharge, and over-discharge tests — no fire, no explosion across all test conditions.
Production-Level Quality Control
Each unit passes 37 production processes and 7 QC inspection steps, including end-of-line (EOL) detection, open-circuit voltage (OCV) detection, and full compatibility testing before packaging. Internal resistance held to ≤30mΩ minimizes heat generation under sustained discharge loads.
Maintenance-Free Operation
No memory effect, no electrolyte refill, no scheduled equalization charges required.
The Terli home battery storage system carries the certification stack that distributors and installers need to clear customs, pass retailer qualification, and satisfy utility interconnection requirements.
TUV / TUV Rheinland — Independent safety certification for European and international commercial buyers; required by project finance lenders for bankable installations
CE — Mandatory for EU market entry; confirms electromagnetic compatibility and electrical safety compliance
EN62619 — European safety standard specifically for stationary lithium energy storage systems
IEC62040 — International standard for uninterruptible power supply systems
CEC Accredited — Clean Energy Council accreditation required for Australian government solar incentive program eligibility
UN38.3 — Passed lithium battery transport testing; enables air, sea, and rail shipment without restrictions
MSDS — Material Safety Data Sheet for customs clearance, warehouse storage, and carrier documentation
RoHS — Confirms no restricted hazardous substances; supports EU environmental compliance
UL — North American safety compliance for US and Canadian market channels
ISO 9001:2015 / ISO 14001 / ISO 45001 — Quality, environmental, and occupational safety management certification across production operations
All certification documents are available on request. OEM-produced units qualify under the same certification framework — contact us for brand transfer details.
The Terli lithium ion powerwall covers every residential and light-commercial storage segment from a single factory, with full OEM/ODM support for distributors building private-label brands.
Helios Standard Range
| Model | Energy | Max Power | Best For |
|---|---|---|---|
| Helios 3 | 3.0 kWh | 2.4 kW | Small apartment, backup only |
| Helios 5 | 5.1 kWh | 4.8 kW | Standard residential solar |
| Helios 7 | 7.6 kWh | 7.2 kW | High-consumption home |
| Helios 10 | 9.6 kWh | 10.3 kW | Large home or light commercial |
Stack 2 to 14 Helios 5 units in parallel to reach 71.4kWh — all with 6000-cycle life and TUV/CE/CEC certification.
Full OEM/ODM Customization
Voltage: 12V / 24V / 48V / 72V / 96V up to 388V
Capacity: 10Ah / 20Ah / 30Ah / 50Ah / 100Ah / 200Ah / 600Ah
Appearance: custom color, logo, LCD branding, enclosure design
BMS parameters: tuned to your application’s charge/discharge profile
Custom solar system design included — submit load profile, receive full system specification within 1 hour
Production Scale
53,000 units/month production capacity supports high-volume distributor orders. Delivery within 15 days; shipping terms EXW / FCA / FOB / CFR / CIF / DDP. UN38.3 and MSDS documentation covers all shipment modes.
Terli backs every 48V 5kWh Powerwall with the manufacturing depth and warranty terms that distributors need to build long-term customer relationships without absorbing battery failure risk.
Manufacturing Credentials
11+ years specialized in lithium battery manufacturing
Two production facilities; two dedicated R&D labs with 20+ engineers
37 production processes per unit: automatic cell sorting, laser welding, EOL detection, OCV detection, and compatibility testing
7 independent QC inspection steps before shipment
Grade A cells, fresh production — no reused or B-grade cells in any unit
Global Track Record
300,000+ families served across 100+ countries
Annual sales documented across EU, North America, Asia Pacific, Africa, Australia, and South America
53,000 units/month production capacity — scale to match distributor growth
10-Year Battery Warranty
Every Helios unit ships with a 10-year battery warranty. Post-warranty technical support remains available — professional debugging, skills training, and after-sales service included.
Fast Response Commitment
Inquiry response within 24 hours
Standard delivery within 15 days; fast delivery (3–5 days) available for stocked configurations
System design quotation delivered within 1 hour of load profile submission
All units carry TUV/CE/CEC certification — documentation available on request for import compliance and insurance purposes.