Supplementary Notes and Fact Check on Will Prowse’s dé Battery Review

We would like to thank Will Prowse and his audience for taking the time to inspect and discuss our battery in detail. Technical feedback is valuable, especially when it comes from people who care deeply about safety, transparency, and real-world performance.

This article is not intended to start an argument or “win” a debate. Instead, we would like to provide additional background information, explain our design choices, and clarify several technical points that may not have been fully visible from the outside.

Based on our existing production records, component specifications, test documents, and internal design information, the following notes address the specific issues mentioned in the video one by one.

1. Why Did Some Insulation Plates or Internal Parts Appear Bent?

Based on our current review, the bent insulation plates and slight internal movement shown in the video were most likely caused by transportation handling, such as the battery being placed upside down, tilted, or strongly shaken during shipping.

This battery is built with two separate internal modules. Each module is an 8S cell group, with insulation plates placed between the cells for separation. Both sides of each module are fixed in place during assembly.

However, because the insulation plates sit between the cells, and because cells may have very slight movement under strong vibration or abnormal shipping orientation, some insulation plates can shift or bend during transportation.

This does not indicate a malfunction in the battery structure. Based on our current technical assessment, this movement will not affect the normal operation of the battery.

Based on this case, we are also improving our shipping process. As a new brand, this is the first time we have encountered this kind of case, and we are treating it as an important learning experience. We have already communicated with our logistics team and are preparing warning labels to remind the  shipping team to handle the batteries more carefully:
Do not turn the battery upside down during shipping. 
Handle with care.

According to our manual and technical documentation, the charge and discharge protection values of this battery are both above 100A. This indicates that the BMS is designed to support 100A-level operation, rather than being limited to 50A.

The possible misunderstanding may come from the difference between charge current and discharge current.

For this 48V 100Ah battery, the current logic is:

• Discharge: 1C, approximately 100A
• Charge: 0.5C, approximately 50A
• The 50A charging design is intended to protect cell life, not because the BMS is only 50A.

3. Why Could the Red Power Cable Be Pulled Loose in the Video?

Based on our current review, the red cable shown in the video is connected to the DC miniature circuit breaker, or MCB. This part is used for switching and overcurrent trip protection. Under our normal production and inspection process, this connection must be fixed and tightened before the battery can pass charge and discharge testing.

The battery uses two red cables and two black cables connected to a 2P/63A DC MCB, which supports up to 125A current flow. 

In our production process, this connection area is fixed with four screws. Based on what is shown in the video, we suspect that one screw may have become loose, and that strong pulling force allowed the cable to be pulled out.

This is not how the connection should appear under normal conditions. Each screw should be tightened during assembly. Otherwise, the unit would not be able to pass charge and discharge testing and could not be shipped.

4. How are our batteries connected in parallel?

We use parallel racks for parallel connection. This design saves customers the cost and time of purchasing additional 3U racks.

Furthermore, our design includes a parallel rack for each product, allowing users to stack 2, 4, or even 10 batteries in parallel using our customized racks. The battery dimensions are (L x W x H) 550mm x 520mm x 140mm (21.6 x 20.5 x 5.5 inh), with an internal width of 482.6mm.

5. Is the Battery Only Available in White?

The video or related discussion may give the impression that the battery is only available in white.

Our battery has both black and white versions. However, the white version accounts for most of our production volume. At the moment, the black version has been sold out, so the black battery product link was temporarily removed from the store.

Closing Notes

We appreciate Will Prowse and the community for raising these questions. Even when feedback is critical, it can help improve product documentation, packaging, production control, and customer communication.

Our position is simple: clarification should be based on facts, records, specifications, and test documents. We are not trying to dismiss the concerns. We are providing additional context so viewers and customers can see the full picture.

If Will Prowse or other technical reviewers would like to discuss the product further, we are open to a follow-up conversation, video call, or technical review. We are also willing to share relevant documentation, including BMS specifications, terminal specifications, certification files, cell reports, and production process references where appropriate.

Thank you again to everyone who cares about battery safety and product transparency. We will continue improving our products, documentation, and logistics process based on real feedback from the community.