{"product_id":"sichler-nc-5725-919-replacement-battery-144v-2000mah-ni-mh","title":"Sichler NC-5725-919 Replacement Battery 14.4V 2000mAh Ni-MH","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eSichler NC-5725-919 \/ PCR-2000 \/ PCR-3550UV — 14.4V Ni-MH Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 14.4V 2000mAh Ni-MH replacement battery for the Sichler NC-5725-919, PCR-2000, and PCR-3550UV cordless handheld vacuum cleaners. It matches the original voltage rail and physical dimensions (134.70 × 45.50 × 45.80mm) so it seats correctly in the battery bay. Replace it when the existing pack no longer drives the motor through a full cleaning cycle.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eNC-5725-919, PCR-2000, PCR-3550UV compatibility:\u003c\/strong\u003e\n    All three models run the same 14.4V motor platform and use an identical battery bay footprint. Swapping between them requires no adapter or wiring change — the connector and cell orientation are the same across the range.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran the pack through charge and discharge cycles on the vacuum motor circuit. The Ni-MH cells maintained stable voltage delivery under simulated carpet load, and the BMS held within normal cutoff thresholds without nuisance trips.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eDock charging habit for Ni-MH cells:\u003c\/strong\u003e\n    Ni-MH chemistry is particularly vulnerable to trickle-charge damage from permanent dock sitting. Charge fully, then remove the vacuum from the dock. Only return it to charge when the pack is genuinely depleted.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eSuction dropping before the battery indicator reaches low\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the motor draws more current than the battery can sustain at full voltage — the terminal voltage sags under load even though stored charge remains. On Ni-MH packs, this is an early sign of cell degradation, where internal resistance has risen enough to cause voltage drop under motor load. A partially blocked filter compounds the problem by forcing the motor to work harder, pulling higher current and accelerating the sag. Clean the filter first, then test again — if suction still fades early with a clean filter, the pack needs replacing.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eMotor cuts out mid-use then recovers after a short pause\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis is a BMS overcurrent trip, not a mechanical fault. When suction is restricted — by a blocked filter, a sealed nozzle, or heavy carpet pile — the motor stalls slightly and current spikes above the BMS threshold, cutting power. The BMS resets once current drops, which is why the vacuum restarts after a pause. Check and clear the filter before suspecting the battery. If trips continue with an unobstructed airpath, verify the pack voltage under load reads above 12V — sustained readings below that indicate cell fatigue.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43428063117402,"sku":"BWCS-ECR120VX-1","price":57.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43428063150170,"sku":"BWCS-ECR120VX-2","price":66.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43428063182938,"sku":"BWCS-ECR120VX-3","price":73.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-ECR120VX-1.webp?v=1779934014","url":"https:\/\/batteryweb.com\/products\/sichler-nc-5725-919-replacement-battery-144v-2000mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}