{"product_id":"sichler-pr-030-replacement-battery-74v-1800mah-li-polymer","title":"Sichler PR-030 Replacement Battery 7.4V 1800mAh Li-Polymer","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eSichler PR-030 \/ PR-025 \/ PR-041 \/ PR-127 — 7.4V Li-Polymer Replacement Battery (PL062018-2S)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 7.4V, 1800mAh lithium-polymer replacement battery for the Sichler PR-030 robotic vacuum cleaner and compatible models including the PR-025, PR-041, and PR-127. It replaces OEM part number PL062018-2S. Fit it when the original cell no longer holds charge through a full cleaning cycle.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePR-030, PR-025, PR-041, PR-127 compatibility:\u003c\/strong\u003e\n    These models share the same 7.4V two-cell lithium-polymer configuration, connector pinout, and BMS handshake protocol — which is why one cell number covers all of them. Swapping between models in this family does not require any adapter or firmware change.\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 a PR-series unit and confirmed the BMS negotiated correctly on first connect — no charge refusal, no protection-circuit lockout. Voltage under motor load stayed within the 6.8–8.4V operating window throughout.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eDock charging habit on robotic vacuums:\u003c\/strong\u003e\n    Do not leave the PR-030 sitting on the charging dock between sessions. Continuous trickle charge on a lithium-polymer cell compresses the usable capacity window over time. Charge to full, then remove from the dock until the next run.\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 on the PR-030\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens because the motor draws more current than rated whenever airflow is restricted — a partially clogged filter is the most common trigger. As current demand rises, the BMS may pull cell voltage below the motor controller's threshold before the fuel gauge registers a low reading. The indicator reads state-of-charge, not instantaneous load voltage — those are different measurements. Clean or replace the filter first, then retest; if suction holds, the battery is not the fault.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eMotor cuts out mid-run then recovers after a few seconds\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis is a BMS overcurrent trip, not a flat battery. When the PR-030 hits a carpet edge or a debris blockage, the motor momentarily stalls and current spikes. The protection circuit opens to prevent cell damage, then resets once current drops — usually within two to five seconds. If this happens repeatedly on open hard floor with a clean filter, measure resting cell voltage after a full charge; it should read 8.3–8.4V. A cell sitting below 8.0V at rest after a full charge cycle has degraded and needs replacement.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43428020650074,"sku":"BWCS-SPR127VX-1","price":30.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43428020682842,"sku":"BWCS-SPR127VX-2","price":35.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43428020715610,"sku":"BWCS-SPR127VX-3","price":38.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-SPR127VX-1.webp?v=1779933918","url":"https:\/\/batteryweb.com\/products\/sichler-pr-030-replacement-battery-74v-1800mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}