Dyness Tower T21 21 kWh HV battery B9637
Product code: ME8892
Dyness Tower T21 21 kWh HV battery B9637
Shipping costs are not included in the price.
Shipping costs are not included in the price.
Shipping & Returns
Master Energy | Master Investment Sp. z o.o.
1. Right of Return (14 Days)
Individual consumers (B2C) have the right to withdraw from the contract and return purchased items within 14 calendar days from delivery without stating a reason.
2. How to submit a return or claim?
- 📧 E-mail: pv@masterenergy.eu
- 📞 Phone: +48 884 570 201
- 🏢 Registered Address: Master Investment Sp. z o.o., Rondo ONZ 1, 00-124 Warsaw, Poland (VAT ID: PL7010345632)
3. Complete terms and conditions
Detailed freight information, pallet shipping methods, and B2B commercial terms are available at our dedicated information page:
Payment methods
Instant Payments
You can pay for your order immediately using any available payment method. All payment data is encrypted and secured by an SSL certificate.
- Credit & Debit Cards – Visa and Mastercard, processed securely by Stripe.
- Apple Pay – convenient digital wallet checkout in one tap on Apple devices.
- Google Pay – seamless payment with stored cards in Google Wallet.
- BLIK – 6-digit code authorization (available for Polish transactions).
- PayPo – buy now, pay in 30 days or in flexible installments.
- Klarna – buy now, pay in 30 days without extra fees.
- Instant Bank Transfer – automated bank transfer through PayU.
- PayPal – secure multi-currency payment directly from your PayPal account.
Traditional Payments
- Bank Transfer – direct wire transfer to our bank account. Proforma invoice and details are sent by email.
- Cash on Delivery – pay the courier upon package delivery (maximum 10,000 PLN per order).
Installments
PayU Installments – split your order into manageable monthly payments with an instant online application process.
Ask about the product
Administratorem danych osobowych jest Master Investment sp. z o.o.. Przetwarzamy je w celu przesłania odpowiedzi na zapytanie. Więcej informacji dotyczących przetwarzania danych osobowych znajduje się w polityce prywatności.
Product features
Energy storage parameters
- Capacity 20-30 kWh
- Voltage High voltage (HV)
- Capacity [kWh] 21
Description
Dyness T21 is a reliable, modular, premium energy storage solution for home and business. 21 kWh of capacity ensures long autonomy and stable power supply, based on safe LiFePO4 technology. A solid tower structure and intelligent BMS translate into high quality, safety and long service life. Remote monitoring and cooperation with popular hybrid inverters facilitate full control over energy 24/7. The set includes a 10-year warranty and support to make using your own energy storage simple and hassle-free.
Key features
- Capacity of 21 kWh for comfortable operation and savings
- Modular Tower structure - 6 integrated modules in one, aesthetic tower
- Safe LiFePO4 (LFP) chemistry and long service life
- Intelligent BMS with cell protection and balancing
- Remote work monitoring via application/portal
- High compatibility with hybrid inverters of leading brands
- Possibility of operation as an emergency power supply with an appropriate inverter
- Quiet, maintenance-free operation
- 10 years manufacturer's warranty
Technical parameters
- Type: LiFePO4 (HV) high voltage energy storage
- Nominal capacity: 21 kWh
- Number of modules: 6
- Communication: CAN/RS485
- Installation method: free-standing tower (plug-and-play)
- Cycle life: over 6000 cycles
- Warranty: 10 years
Customer reviews
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