{"product_id":"phiten-cn100001-replacement-battery-37v-2600mah-li-ion","title":"Phiten CN100001 Replacement Battery 3.7V 2600mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003ePhiten CN100001 — 3.7V Li-ion Replacement Battery (INR18650-22S)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 2600mAh Li-ion replacement battery for the Phiten CN100001 personal care device. It uses an INR18650-22S cell format and slots into the original battery compartment. When the original cell no longer holds adequate charge, this is the direct cell swap.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCN100001 platform fit:\u003c\/strong\u003e\n    The CN100001 runs a single-cell 3.7V nominal rail with a BMS that monitors voltage at both ends of discharge. The INR18650-22S matches that rail exactly — voltage, form factor (68 × 19 × 19mm), and cell chemistry all align with what the stock BMS expects to see.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through charge and discharge on a cell tester, confirmed the protection circuit trips at the correct over-discharge threshold, and verified the cell holds full rated capacity at 2600mAh before shipping.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePort hygiene after use near moisture:\u003c\/strong\u003e\n    Dry the charging port fully before connecting after any use near water. Moisture bridging the charging contacts causes the BMS to trigger a protection fault that registers as a dead battery — not a charging error — and can lock the cell out of charging entirely until the fault clears.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eMotor power dropping before the battery indicator shows low\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe CN100001 motor draws a short current spike at startup, which causes a brief voltage sag on the cell. An aged or partially degraded cell sags further than a fresh one — far enough that the BMS reads it as approaching the low-voltage cutoff and reduces output before the fuel gauge catches up. The indicator LED reflects average voltage, not the instantaneous sag under load. A fresh INR18650-22S cell with lower internal resistance handles that startup spike without sagging past the BMS threshold, restoring full motor power from the first press.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eDevice not charging after moisture exposure\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eMoisture on the charging contacts can cause a short across the port that the BMS interprets as a fault condition, latching the protection circuit open. In that state the device accepts no charge and shows no charging indicator — it looks dead. Let the port air-dry completely, then attempt a charge. If the cell voltage has dropped below 2.5V during the lockout period, some chargers won't initiate — use a charger that supports a low-voltage recovery or pre-charge mode to bring the cell back above 3.0V first.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415958028378,"sku":"BWCS-PCN100SL-1","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43415958061146,"sku":"BWCS-PCN100SL-2","price":29.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43415958093914,"sku":"BWCS-PCN100SL-3","price":32.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-PCN100SL-1.webp?v=1779758425","url":"https:\/\/batteryweb.com\/products\/phiten-cn100001-replacement-battery-37v-2600mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}