JK BMS B1A8S-10PS active balance BMS

By JK BMSSKU JK-B1A8S-10PS

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Key specs

Units
SKU
JK-B1A8S-10PS
Official datasheet
Sources

Printed as "JK-B1A8S-10PS" on the cover and as the product specification of every table in Jikong's specification, version 15.3.3.

Official datasheet: JK-B1A8S-10PS Product specification, Version 15.3.3 Rev 15.3.3 · Checked · Earlier document

Location: Cover; product function configuration table, section 2.1, PDF page 8

Documented

Weight
0.41 kg0.91 lb converted
Converted: 411 g / 1000 g per kg = 0.411 kg
Official datasheet
Sources

Converted: 411 g / 1000 g per kg = 0.411 kg

Printed as "成品重量 (Finished weight) 411 g" in the basic parameter table.

Official datasheet: JK-B1A8S-10PS Product specification, Version 15.3.3 Rev 15.3.3 · Checked · Earlier document

Location: Basic parameter table, section 4.1, PDF page 16

Converted

Series cells
3-8S (LiFePO4 and ternary lithium/Li-ion), 7-8S (LTO)
Official datasheet
Sources

Printed in the product adaptation guide for this model as 3~8 strings for ternary lithium and for lithium iron (LiFePO4) batteries and 7~8 for lithium titanate (LTO) batteries; the basic parameter table prints a maximum of 8 collection strings.

Official datasheet: JK-B1A8S-10PS Product specification, Version 15.3.3 Rev 15.3.3 · Checked · Earlier document

Location: Product adaptation guide, section 2.2, PDF page 9

Documented

Dimensions
0.29 L
Calculated: Enclosure volume: W × H × D ÷ 1,000,000
153.9 × 107 × 17.6 mm6.06 × 4.21 × 0.69 in convertedOfficial datasheet
Sources

Printed as "保护板尺寸 (Protective plate size) 153.9*107*17.6 mm" in the basic parameter table and as 153.9mm×107mm×17.6mm in section 5.3; the figures are not labeled by axis, so they are stored in the order printed.

Official datasheet: JK-B1A8S-10PS Product specification, Version 15.3.3 Rev 15.3.3 · Checked · Earlier document

Location: Basic parameter table, section 4.1, PDF page 16; section 5.3, PDF page 23

Calculated

Communications
Bluetooth, UART and display interface (standard); CAN and RS485 optional
Official datasheet
Sources

Printed in the function configuration table as "蓝牙功能 (Bluetooth function) 标配 (Standard option)", "UART接口 (UART interface) 标配", "RS485 选配 (Optional)", "CAN 选配 (Optional)" and "显示屏接口 (Display interface) 标配". The function selection guide (section 2.3) gives the CAN, RS485 and heating options their own model codes.

Official datasheet: JK-B1A8S-10PS Product specification, Version 15.3.3 Rev 15.3.3 · Checked · Earlier document

Location: Product function configuration table, section 2.1, PDF page 8

Documented

Heating output
Heating function optional, designed heating current 4A (not a stated wattage)
Official datasheet
Sources

Printed as "加热功能 (Heating function) 选配 (Optional)" in the function configuration table and "The designed heating current is 4A" in section 3.3; the heating options carry their own model codes in section 2.3.

Official datasheet: JK-B1A8S-10PS Product specification, Version 15.3.3 Rev 15.3.3 · Checked · Earlier document

Location: Product function configuration table, section 2.1, PDF page 8; section 3.3, Heating function, PDF page 11

Documented

Balancing
Active balancing
Official datasheet
Sources

Printed on the cover as "Lithium battery active balancing protection board".

Official datasheet: JK-B1A8S-10PS Product specification, Version 15.3.3 Rev 15.3.3 · Checked · Earlier document

Location: Cover

Documented

Balance current
1 A
Official datasheet
Sources

Printed as "主动均衡电流 (Active equalizing current) 1A" in the function configuration table and "最大均衡电流 (Maximum balancing current) 1 A" in the basic parameter table.

Official datasheet: JK-B1A8S-10PS Product specification, Version 15.3.3 Rev 15.3.3 · Checked · Earlier document

Location: Product function configuration table, section 2.1, PDF page 8; basic parameter table, section 4.1, PDF page 16

Documented

Continuous charge current
100 A
Official datasheet
Sources

Printed as "最大充电电流 (Maximum charging current) 100 A" in the basic parameter table; no duration is printed.

Official datasheet: JK-B1A8S-10PS Product specification, Version 15.3.3 Rev 15.3.3 · Checked · Earlier document

Location: Basic parameter table, section 4.1, PDF page 16

Documented

All specs11
Weight
0.41 kg0.91 lb converted
Converted: 411 g / 1000 g per kg = 0.411 kg
Official datasheet
Sources

Converted: 411 g / 1000 g per kg = 0.411 kg

Printed as "成品重量 (Finished weight) 411 g" in the basic parameter table.

Official datasheet: JK-B1A8S-10PS Product specification, Version 15.3.3 Rev 15.3.3 · Checked · Earlier document

Location: Basic parameter table, section 4.1, PDF page 16

Converted

Series cells
3-8S (LiFePO4 and ternary lithium/Li-ion), 7-8S (LTO)
Official datasheet
Sources

Printed in the product adaptation guide for this model as 3~8 strings for ternary lithium and for lithium iron (LiFePO4) batteries and 7~8 for lithium titanate (LTO) batteries; the basic parameter table prints a maximum of 8 collection strings.

Official datasheet: JK-B1A8S-10PS Product specification, Version 15.3.3 Rev 15.3.3 · Checked · Earlier document

Location: Product adaptation guide, section 2.2, PDF page 9

Documented

Dimensions
153.9 D × 107 D × 17.6 D mm6.06 D × 4.21 D × 0.69 D in converted
Official datasheet
Sources

Printed as "保护板尺寸 (Protective plate size) 153.9*107*17.6 mm" in the basic parameter table and as 153.9mm×107mm×17.6mm in section 5.3; the figures are not labeled by axis, so they are stored in the order printed.

Official datasheet: JK-B1A8S-10PS Product specification, Version 15.3.3 Rev 15.3.3 · Checked · Earlier document

Location: Basic parameter table, section 4.1, PDF page 16; section 5.3, PDF page 23

Documented

Communications
Bluetooth, UART and display interface (standard); CAN and RS485 optional
Official datasheet
Sources

Printed in the function configuration table as "蓝牙功能 (Bluetooth function) 标配 (Standard option)", "UART接口 (UART interface) 标配", "RS485 选配 (Optional)", "CAN 选配 (Optional)" and "显示屏接口 (Display interface) 标配". The function selection guide (section 2.3) gives the CAN, RS485 and heating options their own model codes.

Official datasheet: JK-B1A8S-10PS Product specification, Version 15.3.3 Rev 15.3.3 · Checked · Earlier document

Location: Product function configuration table, section 2.1, PDF page 8

Documented

Heating output
Heating function optional, designed heating current 4A (not a stated wattage)
Official datasheet
Sources

Printed as "加热功能 (Heating function) 选配 (Optional)" in the function configuration table and "The designed heating current is 4A" in section 3.3; the heating options carry their own model codes in section 2.3.

Official datasheet: JK-B1A8S-10PS Product specification, Version 15.3.3 Rev 15.3.3 · Checked · Earlier document

Location: Product function configuration table, section 2.1, PDF page 8; section 3.3, Heating function, PDF page 11

Documented

Balancing
Active balancing
Official datasheet
Sources

Printed on the cover as "Lithium battery active balancing protection board".

Official datasheet: JK-B1A8S-10PS Product specification, Version 15.3.3 Rev 15.3.3 · Checked · Earlier document

Location: Cover

Documented

Balance current
1 A
Official datasheet
Sources

Printed as "主动均衡电流 (Active equalizing current) 1A" in the function configuration table and "最大均衡电流 (Maximum balancing current) 1 A" in the basic parameter table.

Official datasheet: JK-B1A8S-10PS Product specification, Version 15.3.3 Rev 15.3.3 · Checked · Earlier document

Location: Product function configuration table, section 2.1, PDF page 8; basic parameter table, section 4.1, PDF page 16

Documented

Continuous charge current
100 A
Official datasheet
Sources

Printed as "最大充电电流 (Maximum charging current) 100 A" in the basic parameter table; no duration is printed.

Official datasheet: JK-B1A8S-10PS Product specification, Version 15.3.3 Rev 15.3.3 · Checked · Earlier document

Location: Basic parameter table, section 4.1, PDF page 16

Documented

Battery chemistry
Ternary lithium (Li-ion), LiFePO4, LTO
Official datasheet
Sources

Printed in the adaptation guide as "三元锂电池 (Ternary lithium battery)", "铁锂电池 (Lithium iron battery)" and "钛酸锂电池 (Lithium titanate battery)".

Official datasheet: JK-B1A8S-10PS Product specification, Version 15.3.3 Rev 15.3.3 · Checked · Earlier document

Location: Product adaptation guide, section 2.2, PDF page 9

Documented

Continuous discharge current
100 A
Official datasheet
Sources

Printed as "最大放电电流 (Maximum discharge current) 100 A" in the basic parameter table; the discharge overcurrent section notes "The maximum continuous discharge current can not exceed the design value of 100A".

Official datasheet: JK-B1A8S-10PS Product specification, Version 15.3.3 Rev 15.3.3 · Checked · Earlier document

Location: Basic parameter table, section 4.1, PDF page 16; section 3.9, PDF page 13

Documented

Operating temperature
-30 to 70 °C-22 to 158 °F converted
Official datasheet
Sources

Printed as "工作温度 (Operating temperature) -30-70 ℃" in the basic parameter table.

Official datasheet: JK-B1A8S-10PS Product specification, Version 15.3.3 Rev 15.3.3 · Checked · Earlier document

Location: Basic parameter table, section 4.1, PDF page 16

Documented

Published claims and calculations, not independent test results.

Documents

1 on file
  • PDF
    JK-B1A8S-10PS Product specification, Version 15.3.3OfficialChengdu Jikong Technology Co., Ltd. (JK BMS)Official datasheet
    Source details
    Revision
    15.3.3
    Revision date
    Not stated

    Archived copy captured on 2026-10-29.

    Location: Cover; revision record (page 4); sections 1.2 to 2.3 (pages 6, 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-B1A8S-10PS active balance BMS board, version 15.3.3 (cover; its file name says user manual), 26 pages. The revision record on page 4 prints two rows: "2024.12.11 V15.3.3" first release, and "2025.12.05" with "/" for the version, removing the precharge function ("去掉预充功能"). It covers the JK-B1A8S-10PS only; the JK-B1A8S-10P has its own specification. The version is the document's; it is not stated to be a hardware version. 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/2026/10/JK-B1A8S-10PS-User-Manual-V15.3.3.pdf (HTTP 200, final URL the same), on October 29, 2026 at 18:13:00.285 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 copies

    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 backup 15.3.3 · 0.76 MB

    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/2026/10/JK-B1A8S-10PS-User-Manual-V15.3.3.pdf. Copyright and takedown

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    Pages
    26
    Embedded creation date
    Embedded modification date

    Embedded dates are file metadata, not independent proof of publication.

    SHA-256: 9a0cba46755c4aa84ef7ea94582730c56c12e1b606933deee96e5ff385d61db4

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Archive and older revisions

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Earlier revisions, archived captures and copies published by someone other than the manufacturer. Every one stays reachable.

Archived documents

JK-B1A8S-10PS Product specification, Version 15.3.3

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 backup 15.3.3 · 0.76 MB

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/2026/10/JK-B1A8S-10PS-User-Manual-V15.3.3.pdf. Copyright and takedown

Source first found
This copy captured
Archived
File detailsOriginal source
Pages
26
Embedded creation date
Embedded modification date

Embedded dates are file metadata, not independent proof of publication.

SHA-256: 9a0cba46755c4aa84ef7ea94582730c56c12e1b606933deee96e5ff385d61db4

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Model history

Model identity

Model
JK-B1A8S-10PS

Manufacturer SKU JK-B1A8S-10PS

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