Tewaycell 16kWh All in One ESS 51.2V 314Ah LiFePO4 Battery Built-in 5kW Hybrid 230Vac Off-Grid Inverter
Free Shipping, Free customs duties and Free tax, you don't need to pay any other fees! DDP Shipping method!
Using Grade A+ 314Ah lifepo4 cells, up to 16kwh/15kwh.
With Bluetooth WiFi function--allowing timely access to battery details through mobile app and web backend.
Optional Inverter WIFI module & Optional heating function.
Integrated inverter & battery, easy to install, plug & play.
High energy density, deep cycle life.
Designed for Off-grid, backup, and self-consumption applications.
16kWh All in One ESS integrates 51.2V 314Ah LiFePO4 battery + 5kW 230Vac hybrid off-grid inverter. Support solar/mains dual charging, expandable to 3-phase system, ideal for home power backup & off-grid self-sufficiency. Free DDP door-to-door delivery without extra customs & tax fees.
Features
- Tewaycell Upgraded V2 16kWh All in One Energy Storage System: With A+ LiFePO4 cells, 6000+ cycles @80% DOD, and integrated 16kWh battery and 5kW inverter, this plug-and-play ESS is ideal for home solar, off-grid living, and backup power.
- Bluetooth & WiFi Remote Monitoring: Monitor real-time SOC, voltage, and charging power via mobile app, helping optimize solar self-consumption and energy usage.
- 2A Active Equalization BMS System: This V2 16kWh all-in-one home energy storage is equipped with advanced BMS featuring 2A active equalization, which improves cell consistency and extends whole-pack service life.
- Built-in Aerosol Fire Extinguishing System: Provides multi-layer protection against over-charge, over-discharge, short-circuit, and over-temperature for safer indoor operation.
- Expandable Capacity & 3-Phase Parallel Support: Connect multiple identical units to expand storage capacity or build a three-phase power system. For best matching performance, order all units together.
- Intelligent Multi-Source Charging Modes: Supports PV solar charging, mains grid charging, or simultaneous charging from both sources, with automatic switching for reliable backup power.
- Optional Heating Module: Available with or without a heating module to improve battery performance in low-temperature environments.
| Model | TW-AO-MB51314-HFP5KW-V2(16S) | TW-AO-MB48314-HFP5KW-V2(15S) |
| BATTERY TECHNICAL SPECIFICATION | ||
| Battery Model | TW-MB51314-100A-HWB(16S) | TW-MB48314-100A-HWB(15S) |
| Number of Batteries | 1 | |
| Battery Energy | 16 kWh | 15 kWh |
| Actual Battery Capacity | 314 Ah | |
| Dimension L×D×H (mm) | 1010 × 520 × 300 | |
| Battery Type | LiFePO4 | |
| Battery Rated Voltage | 51.2V | 48.0V |
| Battery Working Voltage | 44.8 ~ 57.6V | |
| Maximum Charging Current | 100A | |
| Maximum Discharging Current | 100A | |
| DOD Designed Life-span | 80% > 6000 Cycles @0.2C/25℃, charging/discharging at 80% DOD until 80% capacity. | |
| INVERTER TECHNICAL SPECIFICATION | ||
| PV CHARGE | ||
| Solar Charge Type | MPPT | |
| Maximum PV Input Power | 6000W | |
| Maximum PV Input Current | 22A | |
| PV Charging Current Range | 0 ~ 100A | |
| Max PV Operating Voltage | 500Vdc | |
| MPPT Voltage Range | 120 ~ 450Vdc | |
| Grid CHARGE | ||
| AC Input Voltage Range |
40~58Vdc
|
|
| Max AC Charging Current | 60A | |
| Charge Current Error | ±5A | |
| Short Circuit Protection | Circuit breaker and blown fuse | |
| Circuit Breaker Specifications | 40A | |
| AC OUTPUT | ||
| Rated Output Power | 5500W | |
| Maximum Output Current | 24A | |
| Rated Output Voltage | 230Vac | |
| Frequency | 50Hz | |
| BATTERY INVERTER OUTPUT | ||
| Rated Output Power | 5500VA | |
| Maximum Peak Power | 11000VA | |
| Power Factor | 1 | |
| Rated Output Voltage | 230Vac | |
| Frequency | 50Hz | |
| Output Voltage Tolerance | ±5% | |
| Max. Efficiency | >92% | |
| GENERAL DATA | ||
| Communication | RS485 / CAN / WIFI | |
| Storage Time / Temperature | 6 months @25℃ | 3 months @35℃ | 1 month @45℃ | |
| Charging Temperature Range | 0 ~ 45℃ | |
| Discharging Temperature Range | -10 ~ 45℃ | |
| Operation Humidity | 5% ~ 85% | |
| Nominal Operation Altitude | <2000m | |
| Cooling Mode | Force-Air Cooling | |
| Noise | 60 dB(A) | |
| Ingress Protection Rating | IP20 | |
| Recommended Operation Environment | Indoor | |
| Fire Extinguishing Function | Built-in Aerosol Fire Extinguishing System | |
| ACTIVE EQUALIZATION MODULE | ||
| Balance Current | BMS with integrated 2A active equalization | |
Technical Documentation & User Manual
Tewaycell 16kWh All in One ESS User Manual V2.PDF
Tewaycell 16kWh All in One ESS CE Certification
Frequently Asked Questions
- Q1: Is parallel connection supported for capacity expansion? How many units can I parallel? A: Yes. Up to 6 units for identical Tewaycell 16kWh all-in-one ESS. Combined with separate Tewaycell 16kWh battery packs to expand capacity, max 15 units total. Contact support to verify model compatibility for large-scale parallel systems.
- Q2: Which solar panels can work with this 16kWh all-in-one home energy storage? A: This all-in-one unit works with most mainstream solar PV panels. Please confirm PV voltage range before installation, consult technical support if you have doubts.
- Q3: Can this system work during a power outage? A: Yes. The system automatically switches to battery power when grid power fails, providing backup power for your home.
- Q4: Does this system require a professional electrician to install? A: The system is designed for plug-and-play installation. Basic electrical knowledge is sufficient for most setups. We also suggest installation and commissioning be completed by qualified solar technicians for safety.
- Q5: Does the 16kWh all-in-one solar battery work in cold weather? A: Heating module is optional. Pick the heating-equipped unit for low-temperature environments to improve battery performance in cold conditions.
- Q6: Can I monitor the 16kWh all-in-one home ess via mobile App? A: Yes. It supports Bluetooth and WiFi connectivity. The mobile App allows you to keep track of overall system working conditions, energy flow and historical running data for better energy management.
- Q7: What is the cycle life of this Tewaycell 16kWh all-in-one battery? A: Adopting A+ grade LiFePO4 cells, it achieves 6000+ cycles @80% DOD, delivering long service life for home energy-storage applications.
- Q8: Is shipping to my country included? Are there customs fees? A: We offer free DDP shipping to EU countries — no additional customs or tax fees at delivery.
Precautions
- No matter what the charging model is, once the temperature of the cell is above the absolute charging temperature, charging should be stopped.
- Please check the orientation of the positive and negative terminals before packaging.
- Connect the terminal or wire to the battery module, and pay attention to insulation to prevent short circuit.
- When not in use for a long time, the battery should be stored in a cool and dry place (<35°C, 30%~50% SOC, charge and discharge once every 3 months).
- Do not place the battery in direct sunlight or near a heat source.
- Do not wear metal jewelry (such as rings, watches, accessories, etc.) when handling the battery unit.
Prohibited Matters
- Do not charge beyond the maximum charging rate.
- Do not disassemble or modify the battery.
- Do not throw or hit the battery.
- Do not pierce the battery with sharp objects (such as nails, knives, pens, electric drills).
- Do not mix with other types of batteries or modular units.
- Do not excessively squeeze the battery during use.
- Do not place the battery in a high temperature greater than 60°C.
- Do not use conductive materials to connect the positive and negative terminals (such as metals, wires).
Customer Reviews
Bonjour,
Cela fait maintenant plus de 1 an que j'ai cette batterie.
Franchement aucun problème, l’équilibrage ce fait parfaitement et elle fonctionne très bien avec un onduleur sofar solar ME3000SP.
Merci Tewaycell
Je recommande sans hésitation.
Ich nutze das Tewaycell All-in-One System mit integriertem Wechselrichter und LiFePO4-Akku im privaten Bereich.
Positiv:
Die Anlage arbeitet zuverlässig und stabil. Die PV-Leistung wird sinnvoll genutzt, der Akku wird effizient geladen und im Alltag ist ein weitgehend autarker Betrieb möglich. Besonders positiv ist die übersichtliche Darstellung der Energieflüsse, sodass man jederzeit sehen kann, woher der Strom kommt und wohin er geht.
Neutral:
Der Akku lädt in der Praxis bis etwa 95–96 %, was technisch sinnvoll ist und der Lebensdauer dient. Auch die Ladeleistung ist systembedingt begrenzt, sodass bei hoher PV-Leistung nicht der gesamte Überschuss gespeichert werden kann.
Hinweis / Verbesserung:
Die verschiedenen Betriebsmodi (z. B. SBU, SOL, SNU) erfordern ein gewisses Verständnis. Die Funktionsweise ist korrekt, aber nicht auf den ersten Blick selbsterklärend. In meinem Fall kam es anfangs zu Missverständnissen in der Einstellung, die sich jedoch nach genauerer Einarbeitung klären ließen.
Eine ausführlichere oder praxisnähere Dokumentation der Einstellungen wäre hilfreich, um den Einstieg zu erleichtern und typische Fehlinterpretationen zu vermeiden.
Fazit:
Das System funktioniert technisch einwandfrei und erfüllt seinen Zweck sehr gut. Wer sich etwas mit den Einstellungen beschäftigt, kann die Anlage optimal nutzen. Für Einsteiger wäre eine bessere Dokumentation wünschenswert, insgesamt aber ein solides und leistungsfähiges System.
Had this unit up and working for around 3 months and its been flawless , Shipping was quite fast and packaging was fantastic. I'm using it at the farm it runs water pumps, lights power tools, a compressor and much much more. even runs a 2 stand shearing rig. The build quality and batterys are top notch. would recomend thes beauty without resevation.
Perfect and safe packing.
Very good usermanual. Very quiet ventilation fan. Easy settings possible.
Amaizing product! The delivery was smooth and quick. The battery took over everything without any issues whatsoever, bringing the energy consuption down by a lot. The customer support was also very helpful answering every question i had without any delay or attitude.
Shipping Fee
For the orders shipped from China, free shipping for EU，US, UK, and ect，Except for island addresses
For the orders shipped from EU, free shipping to addresses in mainland EU:
If you are a Swiss customer, you can fill in an EU address to place an order.
VAT & Customs Duties
Tax-free, Free customs duties, Free any other miscellaneous fees. You don't need to pay any additional fees.
No VAT/Tax is collected, and you do not need to pay any additional taxes.
Tewaycell Oversea Warehouse
Rapid delivery-overseas warehouse in US, Canada, Germany and Poland.
Delivery Countries
Asia Pacific
Japan, Malaysia, Singapore, Thailand, Australia
Europe
Austria, Belgium, Bulgaria, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Netherlands, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, United Kingdom
* If your consignee's address is Ukraine, the shipping time may exceed 60 days due to the war. If you place an order in our store, then you accept this shipping time. Thank you for your support and understanding.
Regarding the shipping of orders from Swiss customers:
If you are a Swiss customer, you can fill in an EU address to place an order.
Regarding the shipping of orders from Romania customers:
Due to Romanian government regulations, goods may be subject to secondary customs clearance when transported to Romania. If secondary customs clearance occurs, the customer is responsible for the secondary customs clearance and the cost of the secondary customs clearance.
Our delivery time information at a glance:
Total Delivery Time = Handling Time + Transit Time (+ any holidays and weekends)
Ship to USA/North America
|
Warehouse |
Shipping Option |
Handling Time |
Estimated Delivery Time |
|---|---|---|---|
|
US/CA |
Fedex/DHL/UPS(Tax Free) |
1~3 working days |
3~7 working days |
|
CN |
By Sea+Express (Fedex/DHL/UPS, Tax Free) |
3~7 working days |
30~45 working days |
Ship to EU
|
Warehouse |
Shipping Option |
Handling Time |
Estimated Delivery Time |
|---|---|---|---|
|
DE/POL |
DHL/GLS/DPD/UPS/TNT(Tax Free) |
1~3 working days |
3~7 working days |
|
CN |
By Railway/Sea+Express (DHL/GLS/DPD/UPS/TNT, Tax Free) |
3~7 working days |
45~60 working days |
Ship to Asia Pacific/Middle East
|
Warehouse |
Shipping Option |
Handling Time |
Estimated Delivery Time |
|---|---|---|---|
|
CN |
By Sea/Railway+Express (DPD/Toll/UPS/Fedex/TNT, Tax Free) |
3~7 working days |
45~60 working days |
1, We ship to our shipping agency after quality test, check and well packed. 5-7 work days.
2, Shipping agency collect enough goods for a container, then ship to EU by sea. 7-15 working days. At the same time, they send the order information to DPD express to get the tracking number.
3, After about one month's sea voyage to the EU port.
4, The shipping agent handles the customs clearance formalities, sorts the packages, and then sends them to the corresponding DPD express warehouse. 5-10 working days
5, DPD express start the delivery to customers, from now on, the logistics will be updates by DPD express. 3-7 days delivery.
In the 2-4 stages, the traking updates always write "DPD data centre, Order information has been transmitted to DPD."
CE
SGS
ISO9001
KC
IEC
UN38.3 Test
MSDS
