[{"data":1,"prerenderedAt":427},["ShallowReactive",2],{"guide-zh-jk-bms-model-number-explained":3,"guides-zh":347},{"id":4,"title":5,"body":6,"date":326,"description":327,"extension":328,"keywords":329,"meta":336,"navigation":337,"path":338,"related":339,"seo":343,"stem":344,"updated":345,"__hash__":346},"guides_zh\u002Fguides\u002Fjk-bms-model-number-explained.md","JK BMS 型号含义：B2A8S20P、PB2A16S20P 等怎么读",{"type":7,"value":8,"toc":308},"minimark",[9,13,17,20,108,111,113,141,144,146,154,156,159,161,164,181,183,230,233,237,240,248,251,275,283,286,291,294,298,301,305],[10,11,12],"p",{},"JK BMS 的型号看起来像一串密码，其实有规律可循。JK-B2A8S20P、JK-PB2A16S20P 和 JK-B2A24S15P 分别告诉你产品系列、均衡电流、最大串数和持续额定电流。JK 没有公布官方的型号解读，下面的规律是根据规格书和店铺商品描述整理的。在依赖某个数字之前，请先核对你那块板子的规格书。",[14,15,16],"h2",{"id":16},"型号规律",[10,18,19],{},"拆开 JK-PB2A16S20P 来看：",[21,22,23,39],"table",{},[24,25,26],"thead",{},[27,28,29,33,36],"tr",{},[30,31,32],"th",{},"部分",[30,34,35],{},"示例",[30,37,38],{},"含义",[40,41,42,53,64,75,86,97],"tbody",{},[27,43,44,48,50],{},[45,46,47],"td",{},"JK",[45,49,47],{},[45,51,52],{},"品牌（极空，成都）",[27,54,55,58,61],{},[45,56,57],{},"系列",[45,59,60],{},"PB",[45,62,63],{},"产品线：B、PB、BD 等",[27,65,66,69,72],{},[45,67,68],{},"均衡电流",[45,70,71],{},"2A",[45,73,74],{},"主动均衡电流",[27,76,77,80,83],{},[45,78,79],{},"串数",[45,81,82],{},"16S",[45,84,85],{},"最大串联电芯数",[27,87,88,91,94],{},[45,89,90],{},"额定电流",[45,92,93],{},"20P",[45,95,96],{},"持续电流，以十安为单位：20P = 200 A",[27,98,99,102,105],{},[45,100,101],{},"后缀",[45,103,104],{},"-H、-HC、-R",[45,106,107],{},"该版本的可选功能",[10,109,110],{},"因此，JK-B2A8S20P 是 B 系列主板，2 A 均衡，最多 8 串，200 A。JK-B2A24S15P 是 2 A 均衡，最多 24 串，150 A。JK-PB2A16S20P 是储能（逆变器）BMS，最多 16 串，200 A。",[14,112,57],{"id":57},[114,115,116,124,135],"ul",{},[117,118,119,123],"li",{},[120,121,122],"strong",{},"B","：经典的智能 BMS，带主动均衡和蓝牙。常见于房车、船、电动自行车和 DIY 电池组。低配版本通讯口很少，甚至没有。",[117,125,126,128,129,134],{},[120,127,60],{},"：家用储能的\"逆变器 BMS\"。增加了接逆变器的 CAN 和 RS485 口、并联 RS485 口、用于设置电池地址的 4 位拨码开关、干接点、加热输出、1000 条事件日志和 SOC 指示灯。参见",[130,131,133],"a",{"href":132},"\u002Fguides\u002Fjk-bms-inverter-communication","逆变器通讯指南","。",[117,136,137,140],{},[120,138,139],{},"BD","：较小的主板，均衡能力较弱。这里的数字读法不同：BD6A 表示 0.6 A，而不是 6 A；BD4A 表示 0.4 A。",[10,142,143],{},"同一系列内的硬件版本也很重要。App 的设备信息页会显示硬件版本（例如 19H）和软件版本（例如 19.25）。V19 固件改变了部分数值的格式，比如短路延时，所以从 V15 主板上抄来的设置不一定适用于 V19。",[14,145,68],{"id":68},[10,147,148,149,153],{},"字母 A 前面的数字就是均衡电流：1A、2A，BD 主板上则是 0.4 A 和 0.6 A。主动均衡把能量从电压最高的电芯转移到最低的电芯，所以 2 A 均衡纠正压差的速度大约是 1 A 的两倍。100 Ah 以上的电池组通常选 2 A。",[130,150,152],{"href":151},"\u002Fguides\u002Fjk-bms-balance-settings","均衡设置指南","解释了均衡器何时工作。",[14,155,79],{"id":79},[10,157,158],{},"S 前面的数字是上限。标 8S 的主板支持 4 到 8 串，16S 支持 7 或 8 到 16 串，24S 支持 8 到 24 串。具体下限因主板而异，因为 BMS 需要一定的电池组电压才能给自己供电。请把 Cell Count 设成实际串数：不一致会触发\"电芯数量与设置不符\"告警，并让电压保护失准。",[14,160,90],{"id":90},[10,162,163],{},"P 前面的数字乘以十就是持续电流：10P = 100 A，15P = 150 A，20P = 200 A，30P = 300 A。峰值电流和短路电流更高，见规格书。请选择额定值高于逆变器或电机最大持续电流的主板，并为发热留出余量。24 V 电池组上的 3 kW 逆变器满载时就要约 125 A，这还没算转换损耗。",[10,165,166,170,171,175,176,180],{},[130,167,169],{"href":168},"\u002F","JK Preset Studio"," 会用到这个数字。应用现成的",[130,172,174],{"href":173},"\u002Fpresets","预设","时，电流上限会被限制在型号名称读出的额定电流以内，所以 100 A 的主板永远不会被设成 200 A。",[130,177,179],{"href":178},"\u002Fguides\u002Fjk-bms-ocp-scp-settings","OCP 和 SCP 指南","介绍了如何把上限设在额定值以下。",[14,182,101],{"id":101},[21,184,185,197],{},[24,186,187],{},[27,188,189,191,194],{},[30,190,101],{},[30,192,193],{},"常见于",[30,195,196],{},"卖家描述",[40,198,199,210,220],{},[27,200,201,204,207],{},[45,202,203],{},"-H",[45,205,206],{},"B 系列",[45,208,209],{},"加热膜输出",[27,211,212,215,217],{},[45,213,214],{},"-HC",[45,216,206],{},[45,218,219],{},"加热输出和 CAN 口",[27,221,222,225,227],{},[45,223,224],{},"-R 或 R",[45,226,206],{},[45,228,229],{},"仅 RS485 口",[10,231,232],{},"这些字母用得并不统一。同一块板子，有的商品页写 HS，有的写 HC。请看功能列表，不要只看后缀。",[14,234,236],{"id":235},"同一型号功能不同","同一型号，功能不同",[10,238,239],{},"名字相同的两块主板仍可能不一样。我们测试了一块硬件 19H、固件 19.25 的 JK-B2A8S20P：它拒绝写入 RFV、浮充模式、RCV 和 RFV 时间、预充时间、PCL 开关、加热及加热温度、端口模式，以及 CAN 和 UART2 协议编号。但设置数据帧里仍然带有这些字段的数值，所以 App 可能会显示主板实际用不了的设置。",[10,241,242,243,247],{},"浏览器编辑器会替你检查这一点。连接后，它会把每个可选设置的当前值原样写回去试探，这不会改变任何东西。BMS 不支持的设置会被标为\"此 BMS 无此项\"，并从预设和写入中排除。对于已知型号的 ",[244,245,246],"code",{},".jkcfg"," 文件，这些设置会显示较温和的提示\"此 BMS 可能没有\"。",[14,249,250],{"id":250},"怎么选",[114,252,253,259,265],{},[117,254,255,258],{},[120,256,257],{},"房车、船或电动自行车用的 12 V 或 24 V 电池组","：B 系列 8S 主板，1 A 或 2 A 均衡，额定电流高于逆变器或电机。",[117,260,261,264],{},[120,262,263],{},"带混合逆变器的 48 V 家用储能","：PB 系列主板，因为逆变器需要 CAN 或 RS485，并联电池组需要地址。",[117,266,267,270,271,134],{},[120,268,269],{},"寒冷环境","：带加热输出的主板，再配加热膜。参见",[130,272,274],{"href":273},"\u002Fguides\u002Fjk-bms-temperature-heating-settings","温度与加热设置指南",[10,276,277,278,282],{},"无论选哪款，接好线之后都可以从",[130,279,281],{"href":280},"\u002Fguides\u002Fjk-bms-lifepo4-settings","磷酸铁锂设置指南","开始。",[14,284,285],{"id":285},"常见问题",[287,288,290],"h3",{"id":289},"在哪里查看准确型号","在哪里查看准确型号？",[10,292,293],{},"在 App 的设备信息页、主板标签上，或者用编辑器读取 BMS 后在\"设备\"标签页查看。",[287,295,297],{"id":296},"_20p-主板能持续跑-200-a-吗","20P 主板能持续跑 200 A 吗？",[10,299,300],{},"这是它在良好散热条件下的额定值。很多用户会把长期电流控制在额定值的 80 % 左右以下。",[287,302,304],{"id":303},"没有-can-的主板能加装-can-吗","没有 CAN 的主板能加装 CAN 吗？",[10,306,307],{},"不能。通讯口在主板上，请直接购买所需版本。",{"title":309,"searchDepth":310,"depth":310,"links":311},"",3,[312,314,315,316,317,318,319,320,321],{"id":16,"depth":313,"text":16},2,{"id":57,"depth":313,"text":57},{"id":68,"depth":313,"text":68},{"id":79,"depth":313,"text":79},{"id":90,"depth":313,"text":90},{"id":101,"depth":313,"text":101},{"id":235,"depth":313,"text":236},{"id":250,"depth":313,"text":250},{"id":285,"depth":313,"text":285,"children":322},[323,324,325],{"id":289,"depth":310,"text":290},{"id":296,"depth":310,"text":297},{"id":303,"depth":310,"text":304},"2026-10-12","读懂 JK BMS 型号：系列、均衡电流、串数和额定电流，以及 -H、-HC、-R 后缀代表的加热、CAN 和 RS485。","md",[330,331,332,333,334,335],"jk bms 型号含义","jk bms 型号说明","jk b2a8s20p","jk pb2a16s20p","jk bms b2a24s15p","极空 保护板 怎么选",{},true,"\u002Fguides\u002Fjk-bms-model-number-explained",[340,341,342],"jk-bms-inverter-communication","jk-bms-ocp-scp-settings","jk-bms-lifepo4-settings",{"title":5,"description":327},"guides\u002Fjk-bms-model-number-explained",null,"yYSq519X4AVqk1SuKSwKvmDB-JUMK0l1Tcfua5YCx40",[348,352,355,356,359,364,369,373,377,381,385,388,392,396,399,403,407,411,415,419,423],{"path":349,"title":350,"description":351,"date":326,"updated":345},"\u002Fguides\u002Fjk-bms-alarms-list","JK BMS 告警列表：每个告警的含义、原因和处理方法","一张表看懂 JK BMS 全部告警：含义、常见诱因和对应设置，从单体过压、MOS 过温到均衡线电阻。",{"path":132,"title":353,"description":354,"date":326,"updated":345},"JK 储能 BMS 与逆变器通讯：Deye、Victron 和 Growatt 设置","通过 CAN 或 RS485 把 JK 储能 BMS 接到 Deye、Victron 或 Growatt：协议编号、端口模式、拨码地址、线序和逆变器端设置。",{"path":338,"title":5,"description":327,"date":326,"updated":345},{"path":273,"title":357,"description":358,"date":326,"updated":345},"JK BMS 温度与加热设置：磷酸铁锂的安全数值","设置 JK BMS 充放电温度保护、MOS 过温和加热功能。为什么出厂 -20 °C 不适合磷酸铁锂，以及该改成多少。",{"path":360,"title":361,"description":362,"date":363,"updated":345},"\u002Fguides\u002Fjk-bms-soc-stuck-at-99","JK BMS SOC 卡在 99%：为什么到不了 100% 以及解决方法","JK BMS 的 SOC 一直停在 99%，始终不显示 100%？了解充电结束时 BMS 在等什么、六个常见原因，以及能解决问题的设置。","2026-10-07",{"path":365,"title":366,"description":367,"date":368,"updated":345},"\u002Fguides\u002Fjk-bms-bluetooth-browser","在浏览器中通过蓝牙修改 JK BMS 设置","在 Chrome 或 Edge 中连接 JK BMS，读取全部设置，应用预设，再按安全顺序写回并逐项回读校验。无需 JK app。","2026-10-04",{"path":151,"title":370,"description":371,"date":372,"updated":368},"JK BMS 均衡设置：均衡启动电压、触发压差和均衡电流","详解 JK BMS 均衡设置：均衡启动电压、均衡触发压差、最大均衡电流和均衡开关，适用于磷酸铁锂、三元和钛酸锂。","2026-10-02",{"path":374,"title":375,"description":376,"date":372,"updated":345},"\u002Fguides\u002Fjk-bms-cell-overcharge-protection-tripping","JK BMS 单体过充保护反复触发：原因与解决方法","JK BMS 单体过充保护每分钟触发又解除？了解充电器设得过高为何导致这种情况、如何与弱单体区分，以及怎样解决。",{"path":378,"title":379,"description":380,"date":372,"updated":368},"\u002Fguides\u002Fjk-bms-detail-log","如何导出并读懂 JK-BMS 详细日志（Detail Log）","JK-BMS 详细日志包含什么、如何从 app 导出、如何读懂其中的事件，以及日志分析页能告诉你哪些保护动作和故障信息。",{"path":382,"title":383,"description":384,"date":372,"updated":368},"\u002Fguides\u002Fjk-bms-export-import-settings","JK BMS 设置导出与导入：.jkcfg 文件完全指南","如何用 JK BMS app 导出和导入保护板设置，.jkcfg 文件里有什么，为什么手动改会损坏，以及如何在浏览器里安全编辑。",{"path":280,"title":386,"description":387,"date":372,"updated":368},"磷酸铁锂 JK BMS 参数设置：8S、16S，280Ah 与 314Ah 电芯","磷酸铁锂电池组的 JK BMS 参数设置：8S 和 16S、280Ah 与 314Ah 电芯的单体电压、均衡、电流和温度推荐值，分三种损耗等级。",{"path":389,"title":390,"description":391,"date":372,"updated":345},"\u002Fguides\u002Fjk-bms-log-messages-explained","JK BMS 日志消息详解：Boot、Time calibration、保护","每条 JK BMS 日志消息的含义：Boot、Time calibration、APP open charge、保护触发与解除，以及 Discharge On Failed。",{"path":393,"title":394,"description":395,"date":372,"updated":368},"\u002Fguides\u002Fjk-bms-nmc-lto-settings","JK BMS 三元锂与钛酸锂设置：安全的单体参数","JK BMS 三元锂 NMC 与钛酸锂 LTO 电池组设置：单体过压、欠压、均衡、温度和倍率的三档数值，以及编辑器如何识别电芯类型。",{"path":178,"title":397,"description":398,"date":372,"updated":368},"JK BMS 过流保护设置：OCP 与 SCP 参数指南","详解 JK BMS 过流保护设置：充放电 OCP 电流上限、延时、恢复时间与短路保护 SCP，附推荐范围和逆变器选型方法。",{"path":400,"title":401,"description":402,"date":372,"updated":368},"\u002Fguides\u002Fjk-bms-parameters-explained","JK BMS 参数详解：按分组逐项讲解每个设置","一篇看懂 JK BMS 参数：单体 OVP、OVPR、UVP、UVPR、均衡、SOC、RCV 与 RFV、电流和温度保护，附磷酸铁锂常用范围。",{"path":404,"title":405,"description":406,"date":372,"updated":368},"\u002Fguides\u002Fjk-bms-password","JK BMS 密码：默认密码、修改与重置指南","JK BMS 的密码其实有两个：蓝牙连接密码和设置密码。本文介绍出厂默认值、修改方法、密码无效时的排查，以及忘记密码怎么办。",{"path":408,"title":409,"description":410,"date":372,"updated":368},"\u002Fguides\u002Fjk-bms-reboots-power-events","JK BMS 重启与充电 MOS 关闭：在日志中读懂电源事件","JK BMS 重启，或充电 MOS 自己关闭？学会读懂详细日志中的 Boot 行和 MOS 状态，分清正常重启与真正的故障。",{"path":412,"title":413,"description":414,"date":372,"updated":368},"\u002Fguides\u002Fjk-bms-sending-failure","JK BMS 发送失败（Sending failure）：原因与逐步解决方法","JK BMS 导入设置时提示发送失败？了解固件拒绝参数的原因（电压顺序链、写入顺序、短路延时），并按步骤解决。",{"path":416,"title":417,"description":418,"date":372,"updated":363},"\u002Fguides\u002Fjk-bms-soc-calibration","JK BMS SOC 校准：解决电量漂移、跳变和复位问题","JK BMS SOC 校准详解：SOC 为什么会漂移或跳变，SOC-100% 电压和 SOC-0% 电压的作用，以及如何设置并重新校准电池组。",{"path":420,"title":421,"description":422,"date":372,"updated":345},"\u002Fguides\u002Fjk-bms-weak-cell-log","用 JK BMS 日志找出弱单体：触发、压差与均衡","在 JK BMS 详细日志中找出弱单体：哪节单体先触发、触发时压差有多大，以及这是均衡漂移还是单体已损坏。",{"path":424,"title":425,"description":426,"date":372,"updated":368},"\u002Fguides\u002Fjk-bms-wire-resistance","JK BMS 线阻：均衡线阻异常报警的排查与修复","JK BMS 线阻详解：均衡线阻异常报警的含义、正常数值范围、常见原因，以及如何修好一根有问题的均衡线。",1791798190533]