Tewaycell 45V 200Ah 9kWh Sodium-Ion All-in-One ESS with Built-in 5kW 220V/230V Hybrid Off-Grid Inverter
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Tewaycell 45V 200Ah 9kWh Sodium-Ion All-in-One Energy Storage System with Built-in 5.5kW Hybrid Off-Grid Inverter
Power your home with the Tewaycell 9kWh Sodium-Ion All-in-One ESS, featuring a 45V 200Ah battery and built-in 5.5kW hybrid off-grid inverter. Enjoy flexible solar and grid charging for home backup and off-grid energy storage, with no grid export.
Energy note: The 9kWh rating represents nominal battery energy. Actual usable energy may vary depending on inverter voltage limits and system conversion losses.
Features:
9kWh Nominal Energy with an All-in-One Design
The integrated 45V 200Ah sodium-ion battery delivers 9.0kWh of nominal energy and works with a built-in 5.5kW hybrid off-grid inverter. Actual usable energy may vary depending on inverter voltage limits and system conversion losses.
Flexible Solar and Grid Charging
Charge the battery using solar PV or utility grid power. The integrated MPPT controller supports solar charging, while grid charging provides an additional option when solar generation is insufficient.
The system does not support exporting electricity to the utility grid.
Integrated Battery Management System
The built-in BMS monitors battery operating conditions and supports battery protection functions to help ensure operation within specified voltage, current and temperature limits.
Built-in Self-Heating System
Automatically heats the battery when cell temperature falls below 0°Cand stops at 15°C . Charging starts after the battery has warmed up, providing added convenience for cold-weather operation.
Built-in Aerosol Fire Suppression
Equipped with an integrated aerosol fire suppression device to provide an additional layer of fire protection inside the energy storage system.
| MODEL | TW-NaCP-AO-MB45200-5KW-EU-PV500V |
|---|---|
| Battery Energy | 9.0kWh
(Actual energy may vary due to inverter voltage limitations)
|
| Battery Capacity | 200Ah |
| Weight | About 129kg |
| Dimension | 300*500*1010mm |
| Battery Type | Sodium lon |
| Battery Rated Voltage | 45.0V（15S) |
| Battery Working Voltage Rang | 40 ~60V |
| Maximum Charging Current | 110A |
| Maximum Discharging Current | 110A |
| DOD Designed Life-span |
>8000 Cycles @ 0.2C/25℃ Charging/Discharging at 70%DOD,Until 70%
Capacity.
|
| INVERTER TECHNICAL SPECIFICATION | |
| Inverter Parameter | |
| PV CHARGE | |
| Solar Charge Type | MPPT |
| Maximum Output Power | 6000W |
| PV Charging Current Range | 0-100A |
| Maximum PV input current | 22A |
| PV Operating Voltage Range | 120-500Vdc |
| MPPT Voltage Range | 120-450Vdc |
| AC CHARGE | |
| Maximum charge current(can be set) | 60A |
| Charge voltage range | 40-60Vdc |
| Short circuit protection | Circuit breaker and blown fuse |
| Circuit breaker specifications | 40A |
| Overcharge protection | Alarm and stop charging after 1 minute |
| AC OUTPUT | |
| Rated Output Power | 5500W |
| Maximum Output Current | 24A |
| Frequency | 50Hz±0.3Hz/60Hz±0.3Hz |
| Rated voltage | 230Vac |
| BATTERY INVERTER OUTPUT | |
| Rated Output Power | 5500VA |
| Max.Peak Power | 11000VA |
| Power Factor | 1 |
| Rated Output Voltage (Vac) | 230Vac |
| Frequency | 50Hz |
| Auto Switch Period | <15ms |
| THD | <3% |
| GENERAL DATA | |
| Communication | RS485/CAN/WIFI |
| Storage time/temperature | 6 months @25℃;3 months @35℃;1 months @45℃; |
| Charging temperature range | -20一55℃ (Built-in Heating Pad) |
| Discharging temperature range | -40一60℃ |
| Operation Humidity | 5%一85% |
| Nominal Operation Altitude | <2000m |
| Cooling Mode | Force-Air Cooling |
| Noise | 60dB(A) |
| Ingress Protection Rating | IP20 |
| Recommended Operation Environment |
Indoor |
| Installation Method | Vertical |
Download Technical Documentation
Tewaycell 9kWh Sodium-Ion All in One ESS EU Standard User Manual.PDF
Frequently Asked Questions
Q: What are the main advantages of this sodium-ion energy storage system?
A: This Tewaycell all-in-one ESS uses sodium-ion battery technology and integrates a 45V 200Ah battery with a built-in hybrid off-grid inverter. Key features include an integrated battery heating system for cold-weather charging, flexible solar and utility grid charging, and a compact design for home backup and off-grid energy storage.
Q: What is the battery capacity and nominal energy?
A: The battery is rated at 45V and 200Ah, corresponding to 9.0kWh of nominal battery energy. Actual usable energy may vary depending on inverter voltage limits, battery discharge settings and system conversion losses.
Q: Can the battery be charged using both solar power and utility grid electricity?
A: Yes. The system supports solar PV charging through its integrated MPPT controller and utility grid charging, providing flexible charging options when solar generation is insufficient. Please consult the user manual for charging settings and electrical compatibility.
Q: Can this energy storage system feed electricity back into the grid?
A: No. This system does not support exporting electricity to the utility grid. Although it supports utility grid charging, grid charging capability does not mean that the inverter supports grid export.
Q: Is the full 9kWh of battery energy available to power household appliances?
A: Not necessarily. The 9.0kWh figure represents nominal battery energy rather than guaranteed AC energy delivered to appliances. Actual usable energy depends on inverter operating voltage limits, battery discharge settings and conversion losses.
Q: Is this all-in-one energy storage system suitable for home backup and off-grid use?
A: The system is designed for solar energy storage, backup power and off-grid applications. Before use, confirm that its rated output power, starting surge capability, AC voltage and frequency meet the requirements of your appliances and electrical installation.
⚠️Important Delivery Notice：
Please inspect the outer packaging and product carefully within 24 hours of delivery. If you notice any transportation damage, missing parts, or an incorrect product, please take clear photos/videos and contact us within 24 hours.
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；
Goods in EU warehouses cannot be shipped to the UK.
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 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, Croatia，UK
* 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. About 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."
Address Changes & Additional Delivery Charges
Due to the high value and shipping costs of our products, any additional charges incurred due to customer-related reasons such as address changes, re-delivery, rerouting, storage, or other fees need to be paid by the customer.
If the additional charges are caused by an error on our part, Tewaycell will be responsible for the applicable costs.
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