{"product_id":"metabo-powermaxx-replacement-battery-48v-2100mah-ni-mh","title":"Metabo Powermaxx 631858000 4.8V Replacement Battery","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eMetabo Powermaxx \/ Powergrip 2 Series — 4.8V Ni-MH Replacement Battery (631858000)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 4.8V, 2100mAh Ni-MH battery replacement for the Metabo Powermaxx and Powergrip 2 series of compact cordless tools. It fits drill-drivers, impact drivers, and screwdrivers across the Powermaxx, Powergrip2, and Powergrip II lines. Capacity is 2100mAh (10.08Wh) — matching the original pack specification.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePowermaxx and Powergrip 2 platform compatibility:\u003c\/strong\u003e\n    These models share the same 4.8V cell stack, physical battery housing, and terminal contact layout. The pack slots and latches identically across Powermaxx, Powergrip2, and Powergrip II platforms — no adapters needed.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this pack through discharge and recharge on a Powermaxx drill-driver platform. The Ni-MH cells accepted full charge without thermal anomaly, and terminal voltage held stable through repeated motor-start inrush draws.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-use load cycling for Ni-MH packs:\u003c\/strong\u003e\n    Run the tool at half load for the first two charge cycles before applying maximum torque. Ni-MH cells in compact housings benefit from a gradual initial cycle — it allows the pack's internal resistance to stabilise before heavy fastening loads are applied.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCharger blinking or refusing to accept the pack after storage\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eNi-MH packs that have sat unused for several months can drop below the voltage threshold the Metabo charger requires to begin a charge cycle. The charger reads the low cell voltage as a fault and blinks rather than charging. To recover the pack, some chargers have a recovery or trickle mode — check the charger manual for this option. If yours does not, a brief trickle charge at 0.1C from a compatible Ni-MH charger can bring cells back above the acceptance threshold, typically around 1.0V per cell.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTool bogs down or loses torque mid-fastening\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis symptom points to voltage sag under load rather than a dead pack. On 4.8V Ni-MH packs, worn cell contacts or high internal resistance cause rail voltage to drop sharply the moment the motor draws current for a heavy drive. The tool bogs because the motor is not receiving its rated voltage under load. Clean the battery terminal contacts on both the pack and the tool with a dry cloth, then check rail voltage under no-load and again under a fastening load — if the drop exceeds 0.5V, cell degradation is the cause.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43416066916442,"sku":"BWCS-MTX631PW-1","price":42.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43416066949210,"sku":"BWCS-MTX631PW-2","price":49.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43416066981978,"sku":"BWCS-MTX631PW-3","price":54.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-MTX631PW-1.webp?v=1779760055","url":"https:\/\/batteryweb.com\/products\/metabo-powermaxx-replacement-battery-48v-2100mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}