{"product_id":"brother-pt-18r-replacement-battery-84v-700mah-ni-mh","title":"Brother BA-18R Replacement Battery 8.4V 700mAh Ni-MH","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eBrother PT-18R \/ PT-18RZ Series — 8.4V Ni-MH Replacement Battery (BA-18R)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is an 8.4V, 700mAh Ni-MH replacement for the Brother BA-18R battery. It fits the PT-18R and PT-18RZ handheld label makers. The same cell also covers OEM references BBP-18 and LN6044001.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePT-18R and PT-18RZ compatibility:\u003c\/strong\u003e\n    Both models run the same 8.4V rail and use identical connector geometry and BMS handshake. The PT-18RZ is the kit version — the battery is physically the same unit, so one SKU covers both.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this battery through charge and discharge on a PT-18R unit. The BMS held charge acceptance without fault and the thermal head voltage stayed stable across multiple label runs.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-use print sequence:\u003c\/strong\u003e\n    After installing this battery, charge it fully, then print five consecutive test labels before deploying the printer. The PT-18R's paper feed motor draws a short high-current pulse at start — running those test prints lets the BMS log the correct current profile for the new cell and prevents false low-battery cutoffs during real jobs.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the PT-18R stops printing after sitting unused for weeks\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eNi-MH cells self-discharge faster than lithium chemistry — a PT-18R left on a shelf for three to four weeks can drop below the minimum motor drive voltage the printer needs to advance the tape. The printer powers on but the feed motor stalls, so no label comes out. This is not a fault with the printer or the battery. A full charge cycle before use clears it entirely.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eFaded or uneven print density on a freshly installed battery\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe PT-18R's thermal print head requires a stable voltage to heat evenly across its element width. If the battery cell voltage sags during the print cycle — common on a new Ni-MH cell that hasn't been conditioned yet — the head temperature varies between passes and characters print unevenly or lighter at one edge. Run two to three full charge-discharge cycles to let the cells reach full capacity. After conditioning, open voltage should read at or above 8.4V before the printer is powered on.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43416000823386,"sku":"BWCS-PBA180SL-1","price":33.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43416000856154,"sku":"BWCS-PBA180SL-2","price":39.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43416000888922,"sku":"BWCS-PBA180SL-3","price":43.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-PBA180SL-1.webp?v=1779759080","url":"https:\/\/batteryweb.com\/products\/brother-pt-18r-replacement-battery-84v-700mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}