{"product_id":"sony-spp-940-replacement-battery-24v-1200mah-ni-mh","title":"Sony SPP-940 Cordless Phone Replacement Battery 2.4V 1200mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eSony SPP-940 \/ SPP-977 \/ SPP-A1050 Series — 2.4V Ni-MH Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 2.4V 1200mAh Ni-MH replacement battery for Sony cordless phone handsets including the SPP-940, SPP-977, SPP-A1050, and SPP-A1070. It fits directly into the handset battery compartment and restores portable operation when the original cell no longer holds charge. Voltage and capacity match the stock Sony specification.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSPP-940 \/ SPP-977 \/ SPP-A1050 series compatibility:\u003c\/strong\u003e\n    These handsets share the same 2.4V two-cell Ni-MH format, connector pinout, and charge circuit. A single battery pack services the full group without modification.\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 SPP-series handsets. The base station charge circuit accepted the battery without error, and the BMS held within the expected 2.4V nominal range across all test cycles.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-charge protocol for Ni-MH cordless packs:\u003c\/strong\u003e\n    After installing, seat the handset in the base and leave it for a full 16 hours before use. Ni-MH cells shipped in storage-discharge state need this slow initial charge to reach rated 1200mAh capacity — skipping it leaves you with noticeably shorter talk time from day one.\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 staying off after installing a new Ni-MH pack\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eSony SPP-series base stations use a delta-V detection circuit to sense when a Ni-MH pack is accepting charge. If the replacement battery arrives at a very low resting voltage from storage, the base may not trigger the charge cycle at all — the indicator stays dark and nothing happens. The fix is to check that the handset is fully and squarely seated in the cradle, then wait up to 20 minutes; the circuit needs a minimum cell voltage to initiate. If it still shows no activity, remove the battery, let it sit at room temperature for 10 minutes, and reseat — a brief recovery from deep storage discharge is usually enough to push the pack above the 2.0V threshold the base needs to start.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eHandset losing range or breaking up on calls after battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eRange dropouts after a battery replacement usually point to voltage sag under RF transmit load, not a faulty pack. When a fresh Ni-MH cell hasn't been through its conditioning cycles, internal resistance is higher than rated — voltage dips the moment the handset's transmitter fires, and the radio output weakens. Run three to five full charge-and-discharge cycles and internal resistance will fall toward spec. If breakup persists past five cycles, check that the battery contacts in the handset are clean and making firm contact — oxidised pins add resistance and compound the sag problem.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43340058656858,"sku":"BWCS-P509CL-1","price":22.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43340058689626,"sku":"BWCS-P509CL-2","price":25.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43340058722394,"sku":"BWCS-P509CL-3","price":27.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-P509CL-1.webp?v=1778367047","url":"https:\/\/batteryweb.com\/products\/sony-spp-940-replacement-battery-24v-1200mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}