{"product_id":"ibm-3415-replacement-battery-36v-1500mah-ni-mh","title":"IBM 3415 Cordless Phone Compatible Battery 3.6V 1500mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eIBM 3415 \/ 3420 \/ 3445 \/ 3455 — 3.6V Ni-MH Replacement Battery (IBM)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.6V, 1500mAh Ni-MH replacement battery for IBM cordless phone handsets in the 3415, 3420, 3445, and 3455 series. It restores handset operation when the original cell has degraded and no longer holds charge. Voltage and connector match the original IBM pack.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003e3415 \/ 3420 \/ 3445 \/ 3455 platform fit:\u003c\/strong\u003e\n    These IBM handsets share the same 3.6V single-cell Ni-MH bay, connector orientation, and physical footprint — 50 × 42 × 14mm. One battery pack covers all listed models without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this pack on the bench through charge and discharge at the standard 150mA charge rate. The cell accepted charge cleanly across all test cycles, with no thermal event and stable cutoff at rated voltage.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-charge protocol for Ni-MH handsets:\u003c\/strong\u003e\n    After installing, seat the handset in the base and leave it for a full 16 hours before first use. Ni-MH cells shipped from storage are partially discharged — skipping this slow initial charge will leave the pack short of rated capacity and the condition may persist.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTalk time shorter than rated after replacement\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eNi-MH cells do not reach full capacity on the first charge cycle — this is normal cell chemistry, not a defect. Rated capacity is typically reached after three to five full charge-discharge cycles. Each cycle, the crystal structure inside the cell becomes more uniform, allowing more charge to be stored. Run the handset to low battery, return it to the base for a full charge, and repeat — capacity increases with each pass.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBase station showing no charge or error light after swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eWhen a Ni-MH pack arrives from storage, its resting voltage can fall below the threshold the base station uses to confirm a valid battery is seated. The base reads this as an absent or faulty pack and refuses to begin charging. Remove the handset, leave the battery installed, and wait ten minutes before reseating — this allows the cell voltage to stabilise slightly. If the base still shows an error, connect the handset to a USB charging path if available, or confirm the pack reads at least 3.0V with a multimeter before reseating.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43339967725658,"sku":"BWCS-CPB400JL-1","price":27.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43339967758426,"sku":"BWCS-CPB400JL-2","price":31.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43339967791194,"sku":"BWCS-CPB400JL-3","price":34.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-CPB400JL-1.webp?v=1778366983","url":"https:\/\/batteryweb.com\/products\/ibm-3415-replacement-battery-36v-1500mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}