{"product_id":"radio-shack-23353-replacement-battery-36v-1200mah-ni-mh","title":"Radio Shack 23353 Cordless Phone Replacement Battery 3.6V 1200mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eRadio Shack 23353 \/ 23620 \/ 23953 — 3.6V Ni-MH Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.6V, 1200mAh Ni-MH battery for Radio Shack cordless phone handsets including the 23353, 23620, 23953, and 3KR600AAL series. It replaces the original pack when the handset no longer holds a charge or drops calls due to low voltage. Fits the handset directly — no modification needed.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003e23353 \/ 23620 \/ 23953 platform fit:\u003c\/strong\u003e\n    These models share the same 3.6V three-cell NiMH pack format and charge contact layout. The base station charges at a fixed trickle rate matched to this chemistry, so swapping to a pack with the same voltage and capacity keeps the charge cycle intact.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this pack through the base station charge circuit and confirmed the BMS accepted the charge handshake without error. Voltage held steady under simulated RF transmit load — no mid-call sag or cutoff.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-charge protocol for NiMH cordless packs:\u003c\/strong\u003e\n    After installing, seat the handset in the base and leave it for a full 16 hours before first use. NiMH cells in cordless phones need this slow initial charge to reach rated capacity — skipping it leaves cells partially formed and reduces performance for the life of the pack.\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 stays off or shows error after battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eNiMH packs drop to around 3.0V or lower during storage. Some Radio Shack base stations use a voltage threshold to detect whether a handset is seated — if the pack is too flat, the base won't initiate charging. The fix is straightforward: seat the handset firmly, wait 10–15 minutes, then check again. Most bases start the charge cycle once the pack voltage climbs above the detection threshold, typically 3.2V.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTalk time shorter than the original battery for the first few uses\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eNiMH cells don't deliver full rated capacity until they've been through three to five full charge-discharge cycles. A new pack running short in the first few uses is normal — the cells are still conditioning. Run the handset until it signals low battery, return it to the base for a full charge, and repeat. By cycle four or five, capacity should stabilise at or near the rated 1200mAh.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43340023922778,"sku":"BWCS-P502CL-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43340023955546,"sku":"BWCS-P502CL-2","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43340023988314,"sku":"BWCS-P502CL-3","price":28.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-P502CL_1.webp?v=1778367047","url":"https:\/\/batteryweb.com\/products\/radio-shack-23353-replacement-battery-36v-1200mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}