{"product_id":"moser-chromini-1591-replacement-battery-12v-1200mah-ni-mh","title":"Moser ChroMini 1591 Replacement Battery 1.2V 1200mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eMoser ChroMini 1591 Series — 1.2V Ni-MH Replacement Battery (1590-7291)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 1.2V, 1200mAh Ni-MH replacement battery for the Moser ChroMini 1591, ChroMini 1591B, ChroMini 1591Q, and Ermila Bella 1590 hair clippers. It replaces OEM part numbers 1590-7291, 1591-0062, and 1591-0067. When the original cell degrades and the clipper loses cutting power or stops holding charge, this cell restores full cordless function.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eChroMini 1591 and Ermila Bella 1590 platform:\u003c\/strong\u003e\n    These models share the same single-cell Ni-MH architecture, 1.2V rail, and physical form factor — 46.60 x 14.20 x 14.20mm. The same cell fits all four variants without modification to the battery bay or connector orientation.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through charge and discharge on the ChroMini 1591 platform. The BMS accepted the cell cleanly, completed a full charge cycle without fault, and the motor drew current at expected levels throughout the discharge curve.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eMoisture and the charging port:\u003c\/strong\u003e\n    Dry the charging port completely before connecting to the charger. Water bridging the contacts causes a BMS protection trip that the clipper reports as a dead battery — not a charging fault. A dry cotton swab clears the contacts in seconds.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCapacity fade from daily partial charging on the ChroMini 1591\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eNi-MH cells in daily-use clippers are vulnerable to shallow-cycle degradation. Charging the ChroMini 1591 after every short session — without running the cell down — causes the battery to lose usable capacity over weeks. The cell's voltage curve compresses, so the clipper cuts out earlier each use even though the indicator still reads mid-charge. A full discharge-to-cutoff followed by a complete charge cycle recalibrates the gauge and partially recovers lost capacity in a new replacement cell.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eMotor speed dropping before the low-battery indicator activates\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis is voltage sag under motor load — not a dead battery. As the Ni-MH cell ages, its internal resistance rises. Under the current draw of the clipper motor, terminal voltage drops below what the motor needs before the BMS registers a low-charge state. The indicator lags behind real capacity. Replacing the cell restores a low internal resistance and eliminates the sag. Confirm the new cell is fully charged before first use — charge until the indicator goes solid, then run one full cycle.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43416129011802,"sku":"BWCS-MCH159SL-1","price":20.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43416129044570,"sku":"BWCS-MCH159SL-2","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43416129077338,"sku":"BWCS-MCH159SL-3","price":25.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-MCH159SL-1.webp?v=1779760424","url":"https:\/\/batteryweb.com\/products\/moser-chromini-1591-replacement-battery-12v-1200mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}