[{"data":1,"prerenderedAt":377},["ShallowReactive",2],{"guide-zh-jk-bms-parallel-batteries":3,"guides-zh":292},{"id":4,"title":5,"body":6,"date":270,"description":271,"extension":272,"keywords":273,"meta":280,"navigation":281,"path":282,"related":283,"seo":288,"stem":289,"updated":290,"__hash__":291},"guides_zh\u002Fguides\u002Fjk-bms-parallel-batteries.md","JK BMS 电池包并联：接线、拨码地址和参数设置",{"type":7,"value":8,"toc":253},"minimark",[9,13,17,20,43,56,59,62,71,74,89,92,99,106,113,116,119,126,151,154,157,187,199,202,205,216,219,224,227,231,239,243,246,250],[10,11,12],"p",{},"家用储能系统常常从一个 48 V 电池包开始，后来扩到两个、三个甚至更多。用 JK 储能 BMS（PB 系列，例如 JK-PB2A16S20P）并联没有问题，但有三件事必须做对：功率接线、电池包之间的通信，以及每个 BMS 上的参数。每个电池包保留自己的 BMS，其中一个作为主机：它汇总整组电池的数据，并负责和逆变器通讯。",[14,15,16],"h2",{"id":16},"接线之前",[10,18,19],{},"汇流排一合上，并联的电池包就处在同一个电压下，所以要先做好准备。",[21,22,23,31,37],"ul",{},[24,25,26,30],"li",{},[27,28,29],"strong",{},"化学体系和串数相同。"," 16S 磷酸铁锂电池包不能和 15S 电池包或三元电池包并联。",[24,32,33,36],{},[27,34,35],{},"容量接近。"," 280 Ah 和 314 Ah 的电池包混用也能工作，但电流分配不均匀。电池包完全相同最省心。",[24,38,39,42],{},[27,40,41],{},"电压一致。"," 把每个电池包单独充满，或者让各包电压相差不超过约 0.1 V。压差更大时，一接上就会有很大的电流从一个包冲进另一个包。",[10,44,45,46,49,50,55],{},"PB 板针对这个时刻带有限流功能。检测到充电过流或充电短路时，它把电流限制在 10 A，而不是直接切断，这样电压略有差别的电池包可以慢慢拉平。前提是 ",[27,47,48],{},"Disable PCL","（禁止充电限流）处于关闭状态。相关设置见 ",[51,52,54],"a",{"href":53},"\u002Fguides\u002Fjk-bms-ocp-scp-settings","OCP 和 SCP 指南","。",[14,57,58],{"id":58},"功率接线",[10,60,61],{},"正极接正极，负极接负极。每个电池包的正极线上都要单独装一个保险或直流断路器，规格按该包 BMS 的额定电流选。",[10,63,64],{},[65,66],"img",{"alt":67,"height":68,"src":69,"width":70},"三个 JK BMS 电池包并联的功率接线图：每个电池包都接到正极汇流排和负极汇流排上，每根正极线都有自己的保险或断路器，逆变器的正极从电池组一端引出，负极从另一端引出",440,"\u002Fimages\u002Fguides\u002Fparallel-power-zh.svg",800,[10,72,73],{},"两条规则可以让各包均匀分担电流：",[75,76,77,83],"ol",{},[24,78,79,82],{},[27,80,81],{},"线缆长度相同。"," 每个电池包到汇流排的线缆截面和长度都要一样。线缆越短电阻越小，那个包就承担得越多。",[24,84,85,88],{},[27,86,87],{},"从两端取电。"," 逆变器正极接在正极汇流排的一端，逆变器负极接在负极汇流排的另一端。这样每个电池包经过的线缆总长度相同。如果把电池包一个接一个串着连，再从第一个包引出逆变器的两根线，第一个包就会承担大部分负载。",[14,90,91],{"id":91},"通信连接",[10,93,94,95,55],{},"PB 转接板上有 CAN 口、RS485-1、RS232 和一个双口的 RS485-2。RS485-2 就是并联通信口。用网线把主机的 RS485-2 接到下一个电池包的 RS485-2，再从这个包的另一个 RS485-2 口接到下一个包，依次类推。只有主机通过 CAN 或 RS485-1 接逆变器，具体见 ",[51,96,98],{"href":97},"\u002Fguides\u002Fjk-bms-inverter-communication","逆变器通讯指南",[10,100,101],{},[65,102],{"alt":103,"height":104,"src":105,"width":70},"四个 JK BMS 电池包之间的通信连接图：地址为 0 的主机通过 CAN 或 RS485-1 接逆变器，RS485-2 网线把主机和地址为 1、2、3 的电池包依次串联起来",300,"\u002Fimages\u002Fguides\u002Fparallel-comms-zh.svg",[10,107,108,109,112],{},"通信正常时，主机和每台从机上的 ",[27,110,111],{},"Link"," 指示灯都会闪烁。如果某个包上的灯一直不亮，先检查这个包的网线和地址。",[14,114,115],{"id":115},"拨码地址",[10,117,118],{},"标着 ADD 的四位拨码开关用来设置电池包地址。根据 JK 的 PB 说明书，1、2、3、4 号开关分别代表 1、2、4、8。把拨到 ON 的开关对应的数值相加，就是地址。",[10,120,121],{},[65,122],{"alt":123,"height":124,"src":125,"width":70},"JK BMS 前几个地址的拨码位置：全部拨到 OFF 是地址 0（主机），1 号开关拨到 ON 是地址 1，2 号开关拨到 ON 是地址 2，1 号和 2 号开关拨到 ON 是地址 3，3 号开关拨到 ON 是地址 4",260,"\u002Fimages\u002Fguides\u002Fparallel-dip-zh.svg",[21,127,128,135,142,145],{},[24,129,130,131,134],{},"只能有一个电池包是 ",[27,132,133],{},"地址 0","，它就是主机。",[24,136,137,138,141],{},"其余每个电池包都要有 ",[27,139,140],{},"1 到 15 之间不重复的地址","。两个包地址相同，就会在通信线上互相冲突。",[24,143,144],{},"四位开关一共 16 个地址，所以一组最多 16 个电池包。你的逆变器支持的数量可能更少。",[24,146,147,148,55],{},"BMS 在开机时读取地址。请在 BMS 关机状态下拨码，或者拨完后按一下 ",[27,149,150],{},"RST",[14,152,153],{"id":153},"每个电池包上的参数",[10,155,156],{},"每个 BMS 只保护自己的电池包，所以所有包的保护参数要设成一样。如果某个包的单体过压保护（OVP）设得更低，它会先跳保护，剩下的电池包就会突然承担全部充电电流。",[21,158,159,169,175,181],{},[24,160,161,164,165,55],{},[27,162,163],{},"电压阈值相同","：单体 OVP、UVP 及其恢复值，SOC-100% 和 SOC-0% 电压，均衡启动电压和触发压差。每一项的含义见 ",[51,166,168],{"href":167},"\u002Fparameters#cellOvp","参数说明",[24,170,171,174],{},[27,172,173],{},"容量按本包填写","：Battery capacity 填这个电池包自己的容量，而不是整组的总容量。",[24,176,177,180],{},[27,178,179],{},"电流限制相同","：每个电池包设成一样。",[24,182,183,186],{},[27,184,185],{},"协议设置只在主机上改。"," 从机不和逆变器通讯。",[10,188,189,190,194,195,55],{},"最简单的做法是在 ",[51,191,193],{"href":192},"\u002F","浏览器编辑器"," 里依次连接每个电池包，应用同一个预设，再写回 BMS。顺便给每个电池包保存一份 .jkcfg 备份，方法见 ",[51,196,198],{"href":197},"\u002Fguides\u002Fjk-bms-export-import-settings","导出和导入指南",[14,200,201],{"id":201},"整组电池的电流限制",[10,203,204],{},"电池包之间不可能完全均匀地分担电流，而且某个包可能因为保护而断开，其余的包还在继续工作。要为这种情况留出余量。",[21,206,207,210,213],{},[24,208,209],{},"逆变器的最大充放电电流要设到即使少了一个电池包，整组也能承受。三个 200 A 的电池包不要按 600 A 用，设在 400 A 左右，可以给其中一个包断开留出余地。",[24,211,212],{},"每个电池包的充电电流限制不要超过它的电芯允许的值，哪怕整组的总电流看起来很大。",[24,214,215],{},"平时偶尔看一下每个电池包的电流。如果某个包总是比其他包大很多，说明其他地方有线缆、保险或接头的电阻偏大。",[14,217,218],{"id":218},"故障排查",[220,221,223],"h3",{"id":222},"逆变器只认到一个电池包问题在哪里","逆变器只认到一个电池包，问题在哪里？",[10,225,226],{},"从机没有连上主机。检查 RS485-2 网线，看看有没有两个包地址相同，并确认只有一个包是地址 0。排查时留意 Link 指示灯。",[220,228,230],{"id":229},"有一个电池包始终不充电为什么","有一个电池包始终不充电，为什么？",[10,232,233,234,238],{},"查看它的告警。如果某个包因为保护关掉了充电 MOS，它就会在其他包充电时一直闲着。",[51,235,237],{"href":236},"\u002Fguides\u002Fjk-bms-alarms-list","告警列表"," 里写明了每个告警由哪个参数控制。",[220,240,242],{"id":241},"pb-电池包能和-b2a-电池包混用吗","PB 电池包能和 B2A 电池包混用吗？",[10,244,245],{},"功率部分可以，只要电压和化学体系一致。但 B2A 板没有 RS485-2 并联通信，主机看不到这个包，逆变器也不会把它算进去。",[220,247,249],{"id":248},"只有一个电池包也要设地址-0-吗","只有一个电池包也要设地址 0 吗？",[10,251,252],{},"大多数逆变器方案都要求和逆变器通讯的那个包是地址 0。另外，JK 的固件升级要求地址不为 0，并且该包要和主机断开，所以升级完成后记得把地址改回 0。",{"title":254,"searchDepth":255,"depth":255,"links":256},"",3,[257,259,260,261,262,263,264],{"id":16,"depth":258,"text":16},2,{"id":58,"depth":258,"text":58},{"id":91,"depth":258,"text":91},{"id":115,"depth":258,"text":115},{"id":153,"depth":258,"text":153},{"id":201,"depth":258,"text":201},{"id":218,"depth":258,"text":218,"children":265},[266,267,268,269],{"id":222,"depth":255,"text":223},{"id":229,"depth":255,"text":230},{"id":241,"depth":255,"text":242},{"id":248,"depth":255,"text":249},"2026-10-12","多个 JK 储能 BMS 电池包并联：汇流排接线、RS485-2 并联通信、拨码地址、主机设置、统一参数和电流限制。","md",[274,275,276,277,278,279],"jk bms 电池并联","jk bms 并联接线","jk bms 拨码地址","jk bms rs485-2","jk bms 主机 从机","jk 储能 bms 并联",{},true,"\u002Fguides\u002Fjk-bms-parallel-batteries",[284,285,286,287],"jk-bms-inverter-communication","jk-bms-model-number-explained","jk-bms-ocp-scp-settings","jk-bms-export-import-settings",{"title":5,"description":271},"guides\u002Fjk-bms-parallel-batteries",null,"npPWv7iV55KGgJUuz1LG5TBAZEPn5SI5sq2lTxSSD3M",[293,296,299,303,304,308,313,318,323,327,331,334,338,342,346,349,353,357,361,365,369,373],{"path":236,"title":294,"description":295,"date":270,"updated":290},"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":97,"title":297,"description":298,"date":270,"updated":290},"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":300,"title":301,"description":302,"date":270,"updated":290},"\u002Fguides\u002Fjk-bms-model-number-explained","JK BMS 型号含义：B2A8S20P、PB2A16S20P 等怎么读","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。",{"path":282,"title":5,"description":271,"date":270,"updated":290},{"path":305,"title":306,"description":307,"date":270,"updated":290},"\u002Fguides\u002Fjk-bms-temperature-heating-settings","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":309,"title":310,"description":311,"date":312,"updated":290},"\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":314,"title":315,"description":316,"date":317,"updated":290},"\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":319,"title":320,"description":321,"date":322,"updated":317},"\u002Fguides\u002Fjk-bms-balance-settings","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":324,"title":325,"description":326,"date":322,"updated":290},"\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":328,"title":329,"description":330,"date":322,"updated":317},"\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":197,"title":332,"description":333,"date":322,"updated":317},"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":335,"title":336,"description":337,"date":322,"updated":317},"\u002Fguides\u002Fjk-bms-lifepo4-settings","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":339,"title":340,"description":341,"date":322,"updated":290},"\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":343,"title":344,"description":345,"date":322,"updated":317},"\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":53,"title":347,"description":348,"date":322,"updated":317},"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":350,"title":351,"description":352,"date":322,"updated":317},"\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":354,"title":355,"description":356,"date":322,"updated":317},"\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":358,"title":359,"description":360,"date":322,"updated":317},"\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":362,"title":363,"description":364,"date":322,"updated":317},"\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":366,"title":367,"description":368,"date":322,"updated":312},"\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":370,"title":371,"description":372,"date":322,"updated":290},"\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":374,"title":375,"description":376,"date":322,"updated":317},"\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。",1791825373996]