Battery Manufacturing EquipmentHigh-voltage series cell formation system
RePower's high-voltage series formation system uses high-frequency silicon-carbide power modules and a switching board that strings up to 120 cells on a bus reaching 800 V. RePower states 96% charge and discharge efficiency. It suits high-volume formation where cell monitoring and fault bypass are specified up front.
By RePower
Silicon-carbide modules, 120-cell strings and an 800 V bus
RePower describes high-frequency silicon-carbide power modules, a switching board that handles up to 120 series connections and a bus that reaches 800 V. It says the switching-board channels are controlled independently, with acquisition and judgement at millisecond level. The 120 positions sit in one series string, which works differently from 120 separate cycler channels.
RePower also quotes 96% charge and discharge efficiency and a smaller power section. Ask for the operating point and the baseline behind each figure. Request the full circuit, the cell voltage window, the active series count and the monitoring layout for your formation recipe.
| Parameter | Published value | Record status |
|---|---|---|
| Series switching configuration | Up to 120 series connections | known |
| DC-bus architecture | Up to 800 V | known |
| Power electronics | High-frequency silicon-carbide power modules | known |
Catalogue values apply to the configuration and test method the maker states. Ask for the values that apply to your configuration.
Source references: s2
Settle isolation and bypass before working out capacity
Ask how each cell's voltage is read while current flows through the string. Agree what happens when a cell goes out of limits, how switching transitions are handled and how the system recovers safely after an interruption. The number of cells allowed in a string depends on cell voltage, so ask for the count at your voltage window.
Your enquiry should cover tray layout, how many strings run at once, cooling and the electrical interface on the factory side. If heat recovery or energy return is offered, name the system that receives it and where it is measured. Keep converter efficiency apart from the total formation energy your site will use.
Buying guidance from BatteryEquip.
Link formation faults to the circuit and the recovery log
Ask for a circuit-level description of the series layout: measurement points, balancing functions, protection zones and the records kept for each cell position. The bus voltage matters for electrical integration, while the cell-level formation programme and the list of independently controlled functions matter for process quality. Have qualified engineers on your project review the architecture and site requirements.
Agree supervised demonstrations of fault and interruption sequences that RePower approves, run on suitable test equipment. Record how the system finds the affected position, stops or isolates that circuit and keeps the part of the programme already completed. Confirm what the operator must do before restarting and which records mark the break. RePower sets the demonstration conditions and limits, and every test keeps protection fully active.
Buying guidance from BatteryEquip.
Keep PACK and BMS functions in their own scope
RePower's company introduction lists several test categories and production-line services. For this series formation offer, ask for the actual cell connection and measurement layout. Quote EOL and BMS functions as separate lines when you need them, and set out how a faulty cell or interrupted batch is isolated and logged.
Because every cell in a string sees the same current, the formation and capacity grading page is useful for working out how grading is done afterwards.
Source references: s5
Questions that change the purchase
| Decision | What the catalogue says | Next step |
|---|---|---|
| Are the channels independently controlled? | The page describes a switching board with up to 120 series connections and independently controlled switching channels. | Request the circuit diagram, balancing method and the list of independently controlled functions. |
| What happens when one cell faults? | The page gives the 800 V bus and power-module design, with no cell-level fault procedure. | Watch a demonstration of the agreed interruption and safe recovery sequence. |
Equipment questions
Is this the same as 120 separate test channels?
No. RePower describes series switching. Ask for the actual level of independence, the switching behaviour and the bypass method, and compare it with parallel-channel testers on that basis.
Source s2Is RePower's proposed new base running?
The public record is a project-selection plan for that base. Ask RePower for its current production premises and where your system would be built.
Source s4Prepare the supplier conversation
Fill in the conditions below and ask the supplier to answer each open point in writing. Copying or downloading stays in your browser; nothing is sent.
Sources and check dates
The maker's own pages and public records used for this page, each with the date it was checked.
s1 · Company and supply-scope record
RePower · Manufacturer-origin source
RePower's company overview and its test-system categories.
Archived source check: 2026-10-07
s2 · High-voltage series cell formation system
RePower · Manufacturer-origin source
Solution page describing the silicon-carbide modules, 120-connection switching board, 800 V bus and efficiency figure.
Archived source check: 2026-10-07
s3 · Official portfolio context
RePower · Manufacturer-origin source
RePower's broader test range, for comparing series formation with channel-per-cell equipment.
Archived source check: 2026-10-07
s4 · New-energy testing project selection plan
Guangming District government · Public original record
District plan listing RePower as the planned user of land for a new testing base.
Archived source check: 2026-10-07
Read original record →s5 · Company introduction: RePower testing systems and line services
RePower · Manufacturer-origin source
RePower's introduction to its testing systems and automated line services.
Archived source check: 2026-10-11
Still to confirm
- How each cell in the string is monitored, isolated and bypassed at your voltage window.
- The operating point and baseline behind the 96% efficiency figure.
- The maximum active series count for your cell voltage on the 800 V bus.
- The plant where your system will be built and commissioned.
Series-string cell formation on a high-voltage DC bus
- Cell programme and series layout
- DC bus and site power arrangement
- Balancing and fault isolation
- Formation records and recovery criteria