{"product_id":"eta-1227-zero-replacement-battery-144v-2600mah-li-ion","title":"ETA 1227 Zero Replacement Battery 14.4V 2600mAh Li-ion","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eETA 1227 Zero — 14.4V Li-ion Replacement Battery (H18650CH-4S1P-AGX-8)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 14.4V 2600mAh Li-ion battery pack for the ETA 1227 Zero cordless vacuum cleaner. It replaces OEM part numbers H18650CH-4S1P-AGX-8 and 122700070. Fits both the 1227 Zero and Zero 1227 variants.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003e1227 Zero and Zero 1227 compatibility:\u003c\/strong\u003e\n    Both model designations share the same 14.4V power rail, connector format, and BMS handshake protocol — the physical pack and communication signals are identical across the range.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this pack through repeated charge and discharge runs on a 14.4V load rig. The BMS held correct cutoff at low-cell thresholds and did not trip under normal motor start current.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eDock charging habit on the 1227 Zero:\u003c\/strong\u003e\n    Remove the vacuum from the charging dock once the pack reaches full charge. Leaving it docked continuously applies a low-level trickle current that accelerates capacity fade in 4S Li-ion packs like this one — charge only when depleted.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCordless vacuum losing suction before the battery indicator reaches low\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eOn the ETA 1227 Zero, suction drops noticeably even when the battery indicator still shows mid-charge. This is almost always voltage sag — not capacity loss. A partially blocked filter or full dust container forces the motor to draw more current than rated, which pulls the pack voltage down under load. The BMS reads that sag as a low-cell event and reduces output before the charge indicator catches up. Clear the filter and empty the container first; if suction returns immediately, the pack is fine.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eMotor cuts out mid-clean and then recovers after a few seconds\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis is a BMS overcurrent trip, not a faulty battery. When the 1227 Zero motor encounters sustained restricted airflow — blocked filter, jammed brush roll, or a tight carpet pile — current spikes past the BMS overcurrent threshold and it disconnects the pack to protect the cells. After a few seconds the BMS resets and power returns. The fix is mechanical: clean the filter, check the brush roll for hair wrap, and verify airflow is clear. If the cutout persists on a clean machine, measure resting pack voltage — it should read above 15.6V on a full charge.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43426476359770,"sku":"BWCS-ETZ122VX-1","price":43.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43426476392538,"sku":"BWCS-ETZ122VX-2","price":51.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43426476425306,"sku":"BWCS-ETZ122VX-3","price":56.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-ETZ122VX-1.webp?v=1779933373","url":"https:\/\/batteryweb.com\/products\/eta-1227-zero-replacement-battery-144v-2600mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}