Manufacturer and seller images. Configuration examples may include additional equipment.
Image source: JK BMS JK-B2A8S30P, maker photo: the main image of Jikong's own store page for this one model. The board alone from the front, with three P- and three B- terminals and the C- terminal; the store logo in the corner is trimmed off.Paid link · price checked
Printed as "JK-B2A8S30P" in the title of Jikong's own store page; the CNEEL listing prints the same code as "JK-B2A8S-30P".
Official product page: Jikong Technology Official Store: JKBMS JK-B2A8S30P Smart Active Balance BMS | 300A Continuous Discharge | 2A Active Balance | 4S-8S Li-ion/LiFePO4/LTO Smart BMS Checked · Earlier documentLocation: Product title
Documented
Converted: 541 g / 1000 g per kg = 0.541 kg
Printed as "成品重量 (Finished weight) 541 g" in the basic parameter table.
Official datasheet: JK-B2A8S-30P Product specification, Version 19.0.1 Rev 19.0.1 · March 14, 2025 · Checked · Earlier documentLocation: Basic parameter table, section 4.1, PDF page 16
Converted
Printed as "Series 4-8S" in the page's additional information table.
Official product page: Jikong Technology Official Store: JKBMS JK-B2A8S30P Smart Active Balance BMS | 300A Continuous Discharge | 2A Active Balance | 4S-8S Li-ion/LiFePO4/LTO Smart BMS Checked · Earlier documentLocation: Additional information table
Documented
Printed as "保护板尺寸 (Protective plate size) 182.75*127.26*15.6 mm" in the basic parameter table and as 182.75mm×127.26mm×15.6mm in section 5.3; the figures are not labeled by axis, so they are stored in the order printed.
Official datasheet: JK-B2A8S-30P Product specification, Version 19.0.1 Rev 19.0.1 · March 14, 2025 · Checked · Earlier documentLocation: Basic parameter table, section 4.1, PDF page 16; section 5.3, PDF page 23
Calculated
The additional information table prints "Communication Bluetooth", while the description prints "Connectivity: Integrated Bluetooth, Support CANBus/RS485 customization.". The table's value is recorded first.
Printed as "Communication Bluetooth" in the additional information table.
Printed as "Connectivity: Integrated Bluetooth, Support CANBus/RS485 customization." in the product description of the same page.
Official product page: Jikong Technology Official Store: JKBMS JK-B2A8S30P Smart Active Balance BMS | 300A Continuous Discharge | 2A Active Balance | 4S-8S Li-ion/LiFePO4/LTO Smart BMS Checked · Earlier documentLocation: Additional information table
Documented
Printed as "Smart Active Balance BMS" in the product title.
Official product page: Jikong Technology Official Store: JKBMS JK-B2A8S30P Smart Active Balance BMS | 300A Continuous Discharge | 2A Active Balance | 4S-8S Li-ion/LiFePO4/LTO Smart BMS Checked · Earlier documentLocation: Product title
Documented
Printed as "Peak Discharge: 600A" in the description; no duration is printed.
Official product page: Jikong Technology Official Store: JKBMS JK-B2A8S30P Smart Active Balance BMS | 300A Continuous Discharge | 2A Active Balance | 4S-8S Li-ion/LiFePO4/LTO Smart BMS Checked · Earlier documentLocation: Product description, technical specifications
Documented
Printed as "Balance Current 2A" in the additional information table; the description prints an active balancing range of "0.1A – 2.0A", so this is the maximum.
Official product page: Jikong Technology Official Store: JKBMS JK-B2A8S30P Smart Active Balance BMS | 300A Continuous Discharge | 2A Active Balance | 4S-8S Li-ion/LiFePO4/LTO Smart BMS Checked · Earlier documentLocation: Additional information table
Documented
Printed as "最大充电电流 (Maximum charging current) 300 A" in the basic parameter table of the JK-B2A8S-30P specification (version 19.0.1); the same table prints "Maximum instantaneous current 600 A" separately and states no duration for the 300 A figure.
Official datasheet: JK-B2A8S-30P Product specification, Version 19.0.1 Rev 19.0.1 · March 14, 2025 · Checked · Earlier documentLocation: Basic parameter table, section 4.1, PDF page 16
Documented
Converted: 541 g / 1000 g per kg = 0.541 kg
Printed as "成品重量 (Finished weight) 541 g" in the basic parameter table.
Official datasheet: JK-B2A8S-30P Product specification, Version 19.0.1 Rev 19.0.1 · March 14, 2025 · Checked · Earlier documentLocation: Basic parameter table, section 4.1, PDF page 16
Converted
Printed as "Series 4-8S" in the page's additional information table.
Official product page: Jikong Technology Official Store: JKBMS JK-B2A8S30P Smart Active Balance BMS | 300A Continuous Discharge | 2A Active Balance | 4S-8S Li-ion/LiFePO4/LTO Smart BMS Checked · Earlier documentLocation: Additional information table
Documented
Printed as "保护板尺寸 (Protective plate size) 182.75*127.26*15.6 mm" in the basic parameter table and as 182.75mm×127.26mm×15.6mm in section 5.3; the figures are not labeled by axis, so they are stored in the order printed.
Official datasheet: JK-B2A8S-30P Product specification, Version 19.0.1 Rev 19.0.1 · March 14, 2025 · Checked · Earlier documentLocation: Basic parameter table, section 4.1, PDF page 16; section 5.3, PDF page 23
Documented
The additional information table prints "Communication Bluetooth", while the description prints "Connectivity: Integrated Bluetooth, Support CANBus/RS485 customization.". The table's value is recorded first.
Printed as "Communication Bluetooth" in the additional information table.
Printed as "Connectivity: Integrated Bluetooth, Support CANBus/RS485 customization." in the product description of the same page.
Official product page: Jikong Technology Official Store: JKBMS JK-B2A8S30P Smart Active Balance BMS | 300A Continuous Discharge | 2A Active Balance | 4S-8S Li-ion/LiFePO4/LTO Smart BMS Checked · Earlier documentLocation: Additional information table
Documented
Printed as "Smart Active Balance BMS" in the product title.
Official product page: Jikong Technology Official Store: JKBMS JK-B2A8S30P Smart Active Balance BMS | 300A Continuous Discharge | 2A Active Balance | 4S-8S Li-ion/LiFePO4/LTO Smart BMS Checked · Earlier documentLocation: Product title
Documented
Printed as "Peak Discharge: 600A" in the description; no duration is printed.
Official product page: Jikong Technology Official Store: JKBMS JK-B2A8S30P Smart Active Balance BMS | 300A Continuous Discharge | 2A Active Balance | 4S-8S Li-ion/LiFePO4/LTO Smart BMS Checked · Earlier documentLocation: Product description, technical specifications
Documented
Printed as "Balance Current 2A" in the additional information table; the description prints an active balancing range of "0.1A – 2.0A", so this is the maximum.
Official product page: Jikong Technology Official Store: JKBMS JK-B2A8S30P Smart Active Balance BMS | 300A Continuous Discharge | 2A Active Balance | 4S-8S Li-ion/LiFePO4/LTO Smart BMS Checked · Earlier documentLocation: Additional information table
Documented
Printed as "最大充电电流 (Maximum charging current) 300 A" in the basic parameter table of the JK-B2A8S-30P specification (version 19.0.1); the same table prints "Maximum instantaneous current 600 A" separately and states no duration for the 300 A figure.
Official datasheet: JK-B2A8S-30P Product specification, Version 19.0.1 Rev 19.0.1 · March 14, 2025 · Checked · Earlier documentLocation: Basic parameter table, section 4.1, PDF page 16
Documented
Printed as "(LiFePO4, Li-ion, LTO)" on the page.
Official product page: Jikong Technology Official Store: JKBMS JK-B2A8S30P Smart Active Balance BMS | 300A Continuous Discharge | 2A Active Balance | 4S-8S Li-ion/LiFePO4/LTO Smart BMS Checked · Earlier documentLocation: Product title or description
Documented
Printed as "Continuous Discharge 300A" in the additional information table.
Official product page: Jikong Technology Official Store: JKBMS JK-B2A8S30P Smart Active Balance BMS | 300A Continuous Discharge | 2A Active Balance | 4S-8S Li-ion/LiFePO4/LTO Smart BMS Checked · Earlier documentLocation: Additional information table
Documented
Printed as "工作温度 (Operating temperature) -30-70 ℃" in the basic parameter table.
Official datasheet: JK-B2A8S-30P Product specification, Version 19.0.1 Rev 19.0.1 · March 14, 2025 · Checked · Earlier documentLocation: Basic parameter table, section 4.1, PDF page 16
Documented
Published claims and calculations, not independent test results.
Archived copy captured on 2026-10-29.
Location: Cover; sections 2.1 to 2.3 (pages 8 and 9); 3.3 (page 11); 4.1 (page 16); 5.3 (page 23)
Retrieved
Jikong Technology's own bilingual (Chinese and English) product specification for the JK-B2A8S-30P active balance BMS board, version 19.0.1 (cover; the revision record on page 4 prints "2025.03.14 V19.0.1" as the first release), 26 pages. Its function selection guide (section 2.3, page 9) lists the JK-B2A8S-30P and six function options by their own model codes, row 7 being JK-B2A8S-30PHCR (standard + heating + CAN + RS485). Its other tables are headed JK-B2A8S-30P and name no option code. Alternative Research obtained it with the paced research fetcher (robots.txt read on every hop; no browser, login or alternate client) from Jikong's own host, https://www.jkbms.com/wp-content/uploads/2026/02/JK-B2A8S-30P-Product-specification.pdf (HTTP 200, final URL the same), on October 29, 2026 at 18:12:34.589 UTC; it is linked from the Specifications list of jkbms.com's support page. The document prints no limit on copies. Manufacturer claims, not independent tests.
Archived copy of a document published by Chengdu Jikong Technology Co., Ltd. (JK BMS). Copyright retained by the publisher; kept for reference and verification only, no endorsement implied. To ask for its removal, email legal@chargedreviews.com.
Archived copy, unaltered, kept as a record of what Chengdu Jikong Technology Co., Ltd. (JK BMS) published. Original address: https://www.jkbms.com/wp-content/uploads/2026/02/JK-B2A8S-30P-Product-specification.pdf. Copyright and takedown
Printed revision date: 2025-03-14
Embedded dates are file metadata, not independent proof of publication.
SHA-256: 4d43998e2f7e32d8d0b60d2df8733e47e8a877d4d18f310c60825e3983c29462
Archived copy captured on 2026-10-03.
Location: Product title, product description and additional information table
Retrieved
Jikong Technology's own product page for this model on its official store (shop.jkbms.com, "Jikong Technology Official Store", linked as "OFFICIAL SHOP" from jkbms.com), captured October 3, 2026. A product page with marketing text and a short additional-information table, not a datasheet; no datasheet for this exact model was found.
Earlier revisions, archived captures and copies published by someone other than the manufacturer. Every one stays reachable.
Archived copy captured on 2026-10-03.
Location: Product title, purchase options and specification block
Retrieved
The product page of this listing on the CNEEL Battery Official Store (cneelbattery.com), EEL's official store, captured October 3, 2026. For this BMS board the store is a retailer, not the maker: the page is cited to show that the store sells this exact model, and no recorded value rests on it. Its title, options and specification text are the store's own claims as printed.
Archived copy of a document published by Chengdu Jikong Technology Co., Ltd. (JK BMS). Copyright retained by the publisher; kept for reference and verification only, no endorsement implied. To ask for its removal, email legal@chargedreviews.com.
Archived copy, unaltered, kept as a record of what Chengdu Jikong Technology Co., Ltd. (JK BMS) published. Original address: https://www.jkbms.com/wp-content/uploads/2026/02/JK-B2A8S-30P-Product-specification.pdf. Copyright and takedown
Printed revision date: 2025-03-14
Embedded dates are file metadata, not independent proof of publication.
SHA-256: 4d43998e2f7e32d8d0b60d2df8733e47e8a877d4d18f310c60825e3983c29462
No warranty terms on file.
Affiliate links below. Affiliate disclosure
Price for one unit, as listed by the seller. Does not include tax and shipping. Price checked .
The seller lists this as a new unit. Condition checked .
Official store listing: CNEEL Battery Official Store product listing Paid link.Checked · Earlier documentPrices we read at CNEEL Battery · 12 readings · no change in our readings since
Since · Listing price (USD)
A break in a line is a gap in our readings: no price is drawn for days we did not read.
| Checked (UTC) | Seller | Price |
|---|---|---|
| Oct 3, 2026, 11:13 AM PDT | CNEEL Battery Paid link. | $124.99 |
| Oct 30, 2026, 1:25 AM PDT | CNEEL Battery Paid link. | $124.99 |
| Oct 31, 2026, 1:25 AM PDT | CNEEL Battery Paid link. | $124.99 |
| Nov 1, 2026, 1:05 AM PDT | CNEEL Battery Paid link. | $124.99 |
| Nov 3, 2026, 1:05 AM PST | CNEEL Battery Paid link. | $124.99 |
| Nov 4, 2026, 1:05 AM PST | CNEEL Battery Paid link. | $124.99 |
| Nov 5, 2026, 1:05 AM PST | CNEEL Battery Paid link. | $124.99 |
| Nov 6, 2026, 1:05 AM PST | CNEEL Battery Paid link. | $124.99 |
| Nov 7, 2026, 1:15 AM PST | CNEEL Battery Paid link. | $124.99 |
| Nov 8, 2026, 1:15 AM PST | CNEEL Battery Paid link. | $124.99 |
| Nov 9, 2026, 1:15 AM PST | CNEEL Battery Paid link. | $124.99 |
| Nov 10, 2026, 1:05 AM PST | CNEEL Battery Paid link. | $124.99 |
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No sourced accessories or replacement parts listed yet.
Hyphenated form Jikong prints on the cover and in sections 2.1 to 2.3 (PDF pages 1, 8 and 9) of its JK-B2A8S-30P specification, version 19.0.1, for this model.
Official datasheet: JK-B2A8S-30P Product specification, Version 19.0.1 Rev 19.0.1 · March 14, 2025 · Checked · Earlier documentManufacturer SKU JK-B2A8S30P
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No recalls or legal notices on file; this is not a complete recall or court search. All notices · Report a notice
1.0 (1)Something wrong that is not one of the values above?
Prices · price basis. * Calculated; estimates labeled. Value needs confirmation; select it for the reason.
