{"product_id":"gp-t188-replacement-battery-36v-1200mah-ni-mh","title":"GP T188 Cordless Phone Replacement Battery 3.6V 1200mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eGP T188 \/ T340 — 3.6V Ni-MH Replacement Battery (T188, T340)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis GP battery is a 3.6V, 1200mAh Ni-MH pack that fits Siemens Gigaset cordless handsets using the T188 or T340 battery format. It restores talk time and standby capacity when the original cell has degraded. Voltage and connector match the Gigaset charging circuit directly.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eT188 and T340 handset compatibility:\u003c\/strong\u003e\n    Both OEM part numbers share the same 3.6V single-cell Ni-MH format, the same footprint, and the same two-contact connector used on the Gigaset base charging rail. One replacement covers both variants.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this pack on a Gigaset base station and confirmed the BMS accepted charge from the first dock, held voltage through a full discharge curve, and showed no false-empty cutoff at mid-cycle.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst charge on Gigaset 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 in a partial state need a slow first charge to reach their rated 1200mAh — skipping this shortens capacity on every cycle that follows.\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 light after fitting a new Ni-MH pack\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eGigaset base stations check incoming cell voltage before starting the charge cycle. A Ni-MH battery stored for several months can drop below 3.0V, which the base reads as a fault rather than a flat cell. The fix is to bridge-charge the pack briefly with a compatible external Ni-MH charger until voltage climbs above 3.2V. Once voltage recovers, re-seat the handset in the base and the charge indicator returns to normal.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTalk time noticeably shorter than the original battery after replacement\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eNew Ni-MH cells need three to five full charge-discharge cycles before they deliver rated capacity — this is normal, not a fault. On cycles one and two, available capacity typically sits 20–30% below the 1200mAh figure. Each full cycle conditions the cell chemistry and recovers more headroom. By cycle five, measured discharge should reach or exceed the original battery's end-of-life output.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43340077531226,"sku":"BWCS-SIG920CL-1","price":27.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43340077563994,"sku":"BWCS-SIG920CL-2","price":31.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43340077596762,"sku":"BWCS-SIG920CL-3","price":34.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-SIG920CL_1.webp?v=1778367047","url":"https:\/\/batteryweb.com\/products\/gp-t188-replacement-battery-36v-1200mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}