{"product_id":"blackdecker-phv1210-replacement-battery-12v-1800mah-ni-mh","title":"Black\u0026Decker PHV1210 Replacement Battery 12V 1800mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eBlack\u0026amp;Decker PHV1210 \/ Pivot Vac 12V — 12V Ni-MH Replacement Battery (90557699)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 12V, 1800mAh Ni-MH replacement battery for the Black\u0026amp;Decker PHV1210 and Pivot Vac 12V handheld vacuum. It slots directly into the same battery compartment as the original pack and connects to the same charging contacts. Capacity comes from the product specification: 1800mAh (21.6Wh).\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePHV1210 and Pivot Vac 12V compatibility:\u003c\/strong\u003e\n    Both models share the same 12V battery rail, connector footprint, and charge contact layout. The OEM part number 90557699 covers the full platform — no adapter or wiring change needed.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this pack through the Black\u0026amp;Decker charging base and confirmed the charge termination circuit responded correctly. The Ni-MH delta-V cutoff triggered at the expected point, and the pack held voltage under suction motor load without dropping below the 10V floor.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eNi-MH cycle care for handheld vacuum use:\u003c\/strong\u003e\n    Ni-MH cells in this format are sensitive to shallow cycling. Run the vacuum until suction noticeably drops before recharging — repeated top-ups from a half-charged state accelerate voltage depression in Ni-MH chemistry faster than in lithium formats.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eVoltage depression in Ni-MH packs — why the PHV1210 loses suction over time\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eNi-MH cells develop a memory-like effect called voltage depression when cycled repeatedly without full discharge. The pack reads as charged but delivers lower voltage under load — the suction motor sees less than 12V and runs weak. This is not a dead battery; it is a cell that has been conditioned to a narrow voltage window. Running the vacuum to full cutoff before recharging resets this pattern over two to three cycles and restores usable voltage to above 11V under load.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCharger light stays solid without switching to green after fitting a new pack\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eA new or stored Ni-MH pack can sit below the charger's acceptance voltage threshold if cells have self-discharged during shipping or storage. The charger detects an unexpected voltage profile and holds in a standby state instead of entering the bulk charge phase. Place the pack on the charger and leave it undisturbed for 20 to 30 minutes — the charger's trickle pre-charge circuit will bring cells up to 9.6V, at which point the standard charge cycle initiates. If the light does not change after 45 minutes, check the contact pins on the vacuum's battery bay for oxidation and clean with a dry cloth.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43416003739738,"sku":"BWCS-BDV121VX-1","price":65.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43416003772506,"sku":"BWCS-BDV121VX-2","price":76.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43416003805274,"sku":"BWCS-BDV121VX-3","price":84.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-BDV121VX-1.webp?v=1779759245","url":"https:\/\/batteryweb.com\/products\/blackdecker-phv1210-replacement-battery-12v-1800mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}