{"id":1405559,"date":"2026-05-18T04:36:52","date_gmt":"2026-05-18T04:36:52","guid":{"rendered":"https:\/\/kingsideaconnections.org\/commerce\/?post_type=product&#038;p=1405559"},"modified":"2026-05-18T04:36:53","modified_gmt":"2026-05-18T04:36:53","slug":"4s-40a-li-ion-lithium-battery-18650-charger-pcb-bms-protection-board-with-balance-for-drill-motor-14-8v-16-8v-lipo-cell","status":"publish","type":"product","link":"https:\/\/kingsideaconnections.org\/commerce\/product\/4s-40a-li-ion-lithium-battery-18650-charger-pcb-bms-protection-board-with-balance-for-drill-motor-14-8v-16-8v-lipo-cell\/","title":{"rendered":"4S 40A Li-ion Lithium Battery 18650 Charger PCB BMS Protection Board with Balance For Drill Motor 14.8V 16.8V Lipo Cell"},"content":{"rendered":"<p>Feature 4 string 16 8V 40A lithium battery protection board  comes with recovery function AUTO Recovery Scope  Nominal voltage of 3 6V  3 7V lithium battery  including 18650 26650  polymer lithium battery Product Size  45   55   3 4mm  Standard Edition   Enhanced   46   60   3 4mm  balanced version Product weight  9 3g  standard   enhanced version   10 3g  balanced version Charging voltage  16 8V   18 1VContinuous discharge current  upper limit   40A  if the cooling environment is not good  please reduce the load current use Continuous charge current  upper limit   20AEqualization version  suitable for starting current below 80A  power 135W below the drill ProjectMin Typ Max UnitsConsuming current121824uAOvercharged protection voltage4 24 254 3VBalanced starting voltage4 174 24 23VEquilibrium current95100105mABalanced heating power1 561 721 91WOvercharge recovery voltage4 14 154 2VOver discharge protection voltage2 42 52 6VOvervoltage protection after over discharge protection2 833 2VOvervoltage protection after over discharge protection3 23 53 8VOver discharge recovery voltage2 93 23 3VConduction internal resistance2 533 5m\u03a9Overcurrent protection current C708090AOvercurrent delay time100150200msContinuous operating current04040AContinuous output power0672672WAmbient temperature 402585\u00b0C Troubleshooting Fault phenomenonFault check and causeThe solutionUnable to chargeMeasuring the voltage of 4 groups of batteries  Pair the battery pack well  do not mix when one of the batt<\/p>\n\n    <div class=\"xs_social_share_widget xs_share_url after_content \t\tmain_content  wslu-style-1 wslu-share-box-shaped wslu-fill-colored wslu-none wslu-share-horizontal wslu-theme-font-no wslu-main_content\">\n\n\t\t\n        <ul>\n\t\t\t        <\/ul>\n    <\/div> \n","protected":false},"excerpt":{"rendered":"<p>Manufacturer 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