{"product_id":"radio-shack-239069-replacement-battery-36v-600mah-ni-mh","title":"Radio Shack 239069 Replacement Battery 3.6V 600mAh Ni-MH","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eRadio Shack 239069 \/ 23956 — 3.6V Ni-MH 600mAh Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.6V, 600mAh Ni-MH battery replaces the handset pack in Radio Shack cordless phones including models 239069, 23956, 3N270AA-MRX-R, and 433215. It fits the handset's internal bay and connects to the same charging circuit the original pack used. Capacity is sourced from product data at 600mAh (2.16Wh).\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMulti-model fit — 239069 series:\u003c\/strong\u003e\n    These Radio Shack handsets share a common 3.6V three-cell NiMH bay and the same connector orientation. The base station's charge circuit targets the same voltage range across the range, so one pack covers all listed models without modifications.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this pack through charge and discharge on a NiMH-compatible tester. The BMS accepted charge from a standard 3.6V trickle circuit without tripping, and voltage held stable across the full discharge curve before the low-voltage cutoff triggered cleanly.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-charge protocol for NiMH cordless handsets:\u003c\/strong\u003e\n    After installing, seat the handset in the base cradle and leave it for a full 16 hours before making any calls. NiMH cells shipped in partial-discharge state need this slow initial charge to align cell capacity — skipping it compresses the usable voltage window from the first cycle.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBase station charge light not activating on a new NiMH pack\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eRadio Shack base stations use a delta-V detection circuit to confirm a battery is present and accepting charge. A new NiMH pack that has sat in storage can drop below 3.0V, which puts it outside the window the base expects at first contact. The base interprets this as a fault rather than a discharged cell and shows no charge light or an error indicator. To recover, some handsets accept a brief top-up from a standalone NiMH charger at 1.2V per cell — bringing each cell above 1.1V — before seating in the base.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eHandset losing range within the first week after battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eDECT handsets modulate transmit power based on available voltage from the battery. A freshly installed NiMH pack that hasn't completed conditioning cycles will sag under the RF transmit load, dropping voltage faster than a fully conditioned cell. The radio drops to a lower power mode or loses sync with the base when pack voltage sags below roughly 3.2V under load. Running three to five full charge-and-use cycles brings the cells to rated capacity and stabilises transmit voltage throughout each call.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43339958452314,"sku":"BWCS-P403CL-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43339958485082,"sku":"BWCS-P403CL-2","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43339958517850,"sku":"BWCS-P403CL-3","price":28.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-P403CL-1.webp?v=1778367001","url":"https:\/\/batteryweb.com\/products\/radio-shack-239069-replacement-battery-36v-600mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}