{"product_id":"universel-aa-x-5-replacement-battery-6v-2000mah-ni-mh","title":"Universel AA x 5 Cordless Phone Compatible Battery 6V 2000mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eUniversel AA x 5 — 6V Ni-MH Replacement Battery for Cordless Phones\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 6V, 2000mAh Ni-MH battery pack built from five AA cells in series. It fits cordless DECT handsets that originally used a 5-cell AA Ni-MH configuration. Check your existing pack's cell count and connector orientation before ordering.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003e5-cell AA series configuration:\u003c\/strong\u003e\n    Cordless phones using this layout run a 6V rail to power both the RF transmitter and the handset logic board. The cells must match in capacity and internal resistance — mismatched cells cause early voltage dropout under RF load, which the phone reads as a dead battery.\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 cordless handset base station. The BMS accepted charge without error from cycle one, and voltage held steady across both standby and active transmission draws.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-charge conditioning for Ni-MH handsets:\u003c\/strong\u003e\n    Place the handset in the base for a full 16-hour charge before first use. Ni-MH cells in cordless phone packs ship partially discharged. A slow first charge lets each cell reach balanced capacity — skipping this step leaves measurable capacity on the table for the first several cycles.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBase station showing no charge or an error light on a new Ni-MH pack\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eMost DECT base stations use a delta-V detection circuit to confirm charging. A Ni-MH pack that arrives from storage below roughly 5.4V can sit outside the base's acceptance window, causing the station to flag an error instead of starting a charge cycle. The fix is straightforward: charge the pack externally with a basic AA Ni-MH charger until it reaches at least 5.6V, then seat it back in the base. The station's detection circuit should then recognise the pack and begin a normal charge.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eRange drops noticeably after a battery swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eDECT handsets regulate transmit power directly off the battery voltage. When a Ni-MH pack sags under the RF load of an active call, the handset's power amplifier backs off to stay within its operating window — and range shrinks as a result. This is more pronounced in the first few charge cycles before the cells are conditioned. Run three to five full charge-and-discharge cycles and check whether range recovers. If sag continues past cycle five, measure the pack voltage under load — it should stay above 5.2V during a call.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43339899076698,"sku":"BWCS-CPB047UL-1","price":15.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43339899109466,"sku":"BWCS-CPB047UL-2","price":17.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43339899142234,"sku":"BWCS-CPB047UL-3","price":18.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-CPB047UL-1.webp?v=1778366907","url":"https:\/\/batteryweb.com\/products\/universel-aa-x-5-replacement-battery-6v-2000mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}