Sunwoda OASIS Flex BDU Battery Distribution Unit
Price updated: 04 Oct 2026
In Stock
Delivery in 2-5 working days · Free delivery
Key specifications
- Type
- Battery Distribution Unit
- Application
- C&I commercial and industrial only
- Compatible With
- CIESS25-R-S to CIESS60-R-S
The Sunwoda OASIS Flex BDU (Battery Distribution Unit) is the required distribution and protection component for Sunwoda OASIS Flex Commercial and Industrial high-voltage battery systems. The BDU connects multiple OASIS Flex battery modules into a complete HV system, providing circuit protection, safe isolation and balanced distribution across the battery cluster.
Every complete Sunwoda OASIS Flex installation requires one BDU per cluster. The BDU handles the high-voltage DC connections between the OASIS Flex battery modules and the compatible commercial HV hybrid inverter, ensuring safe operation across the full system voltage range of 256V to 614.4V. It is an essential safety and integration component — the OASIS Flex system cannot operate without it.
- Required accessory for every Sunwoda OASIS Flex cluster
- Connects OASIS Flex battery modules to HV inverter
- Compatible with CIESS25-R-S to CIESS60-R-S systems
- Handles full HV range: 256V to 614.4V
- Provides circuit protection and safe isolation
- One BDU required per OASIS Flex cluster
- For C&I installations — not for residential LV systems
| Type | Battery Distribution Unit |
|---|---|
| Application | C&I commercial and industrial only |
| Compatible With | CIESS25-R-S to CIESS60-R-S |
| Installation | One per OASIS Flex cluster |
| IP Rating | IP20 |
| System | Sunwoda OASIS Flex C&I |
| System Voltage Range | 256V to 614.4V |
1 Year Manufacturer Warranty. Contact us on WhatsApp for warranty claims.
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Frequently Asked Questions
- The Sunwoda OASIS Flex BDU is the Battery Distribution Unit required to connect Sunwoda OASIS Flex battery modules into a complete high-voltage C&I energy storage system. It handles the HV DC connections between the battery modules and the compatible commercial inverter, providing circuit protection and safe isolation across the full system voltage range of 256V to 614.4V. Every complete OASIS Flex cluster installation requires one BDU.
- Yes. The Sunwoda OASIS Flex BDU is a mandatory component for every complete OASIS Flex cluster. Without the BDU the battery modules cannot safely connect to the HV inverter. One BDU is required per cluster of 5 to 12 OASIS Flex battery modules (25kWh to 60kWh per cluster). For installations using multiple clusters in parallel, one BDU is required per cluster.
- The Sunwoda OASIS Flex BDU is compatible with all OASIS Flex C&I system models from CIESS25-R-S (5 modules, 25kWh, 256V) to CIESS60-R-S (12 modules, 60kWh, 614.4V). It is designed exclusively for the Sunwoda OASIS Flex high-voltage system and is not compatible with standard 48V low-voltage residential battery systems such as the SAJ 16kWh, Sunwoda Atrix Max+ or Mesol 16kWh batteries.
- The Sunwoda OASIS Flex BDU price in Pakistan is Rs 220,000 from MartOnline as of October 2026, including free delivery above Rs 50,000. It is purchased alongside the Sunwoda OASIS Flex 5kWh battery modules at Rs 245,000 each. A minimum complete OASIS Flex system requires 5 modules plus one BDU — total component cost Rs 1,445,000 before inverter and installation. Contact MartOnline via WhatsApp at 0324-3493060 for a complete C&I system quote.
- No. The Sunwoda OASIS Flex BDU and the OASIS Flex battery system operate at high voltages from 256V to 614.4V, which are incompatible with standard residential low-voltage hybrid inverters such as the SAJ H2 series, GoodWe ET LV series or GoodWe ES Uniq series, which accept 40V to 60V LV batteries only. The OASIS Flex system requires a compatible commercial HV hybrid inverter. Contact MartOnline via WhatsApp at 0324-3493060 for C&I inverter options compatible with the OASIS Flex system.
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