{"product_id":"sony-psp-n270-replacement-battery-37v-200mah-li-polymer","title":"Sony PSP-N270 Replacement Battery 3.7V 200mAh Li-Polymer","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eSony PSP-N270 Wireless Headset — 3.7V Li-Polymer Replacement Battery (LP491232L100)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V, 200mAh Li-Polymer cell replaces the original LP491232L100 battery in the Sony PSP-N270 and PSP-N270G DECT wireless headsets. It fits the compact housing exactly — 32.82 x 11.88 x 4.90mm — so no modification is needed. Swap it in when the original cell no longer holds a charge or fails to register in the base station.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePSP-N270 and PSP-N270G compatibility:\u003c\/strong\u003e\n    Both headset variants use the same LP491232L100 cell, the same connector pinout, and the same BMS handshake protocol with the Sony base station. One cell covers both models.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through full charge and discharge on the PSP-N270 platform. The BMS completed its handshake with the base station, and the charge indicator cleared without error on every test run.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-charge protocol for DECT headsets:\u003c\/strong\u003e\n    Seat the headset in the base station and let it complete one full charge cycle before taking a call. The base station needs that first cycle to log the new cell and calibrate its talk-time estimate accurately.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBase station not recognising the new pack after fitting\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe PSP-N270 base station reads battery state through a BMS handshake before it begins charging. If the replacement cell arrives at storage voltage — typically around 3.6V — the base may show no charge activity or a fault indicator on first seating. This is not a faulty cell. Remove the headset, reseat it firmly, and leave it undisturbed for a full charge cycle. The handshake completes once current starts flowing and the BMS registers the pack.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eHeadset cuts out mid-call even with a charged battery\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe PSP-N270 draws current from two simultaneous loads — the DECT radio transmitter and the audio amplifier. Under that combined draw, a degraded or shallow-cycled cell can sag below the BMS cutoff threshold even when the base station showed a full charge. The headset interprets this voltage drop as a dead pack and shuts off to protect the cell. If this happens on a new battery, run three to five full charge and discharge cycles — capacity and sag resistance improve as the cell conditions. Check that the base station contact pins are clean and making firm contact before ruling out the cell itself.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43428153098330,"sku":"BWCS-SPN270SL-1","price":25.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43428153131098,"sku":"BWCS-SPN270SL-2","price":28.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43428153163866,"sku":"BWCS-SPN270SL-3","price":30.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-SPN270SL-1.webp?v=1779934245","url":"https:\/\/batteryweb.com\/products\/sony-psp-n270-replacement-battery-37v-200mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}