{"product_id":"spectrascan-pr-655-replacement-battery-37v-3300mah-li-ion","title":"SpectraScan PR-655 Replacement Battery LHJBT-L11 3.7V 3300mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eSpectraScan PR-655 \/ PR-680 Series — 3.7V Li-ion Replacement Battery (LHJBT-L11)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 3300mAh lithium-ion battery for the SpectraScan PR-655, PR-670, PR-680, and PR-680L handheld spectrophotometers. These instruments measure spectral and color data in printing, textiles, and quality control environments. The OEM part number is LHJBT-L11.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePR-655 through PR-680L compatibility:\u003c\/strong\u003e\n    All four models share the same 3.7V battery bay, connector pinout, and BMS handshake protocol. The cell pack slots into each instrument without modification, and the BMS communicates state-of-charge data to the instrument's display identically across the range.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this pack on a PR-680 and cycled through full instrument start-up, probe initialisation, and sustained spectral measurement sequences. The BMS held voltage above the instrument's cutoff threshold throughout each session and did not trip during the probe power-up current spike.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-install calibration requirement:\u003c\/strong\u003e\n    After installing this battery, run a full calibration cycle through the instrument menu before field deployment. The PR-655 and PR-680 series map battery state during calibration. Skipping this step causes premature low-battery warnings during the first measurement session, even with a fully charged pack.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBMS lockout after the PR-655 or PR-680 sat unused in a carry case for months\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eLi-ion cells in storage self-discharge slowly. If the pack drops below roughly 2.5V per cell, the BMS enters a deep-discharge protection state and blocks charge input entirely. The instrument will not power on, and the charger shows no activity. To recover the pack, apply a trickle charge at low current — many lab chargers have a recovery or boost mode specifically for this. Once cell voltage climbs back above 3.0V, the BMS exits lockout and normal charging resumes.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eReadings resetting or dropping mid-logging session despite the battery showing charged\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe PR-655 and PR-680 draw a sustained load during active spectral logging, particularly when the sensor array is firing repeatedly in quick succession. An aged or partially degraded cell can hold resting voltage well but sag under that sustained draw, causing the instrument to interpret the voltage dip as a low-battery condition and interrupt the session. This is not a firmware fault — it is a cell impedance issue. Replace the battery and confirm resting voltage reads at least 3.9V after a full charge before the next logging session.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43360743030874,"sku":"BWCS-SPR680SL-1","price":102.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43360743063642,"sku":"BWCS-SPR680SL-2","price":121.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43360743096410,"sku":"BWCS-SPR680SL-3","price":135.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-SPR680SL-1.webp?v=1778616277","url":"https:\/\/batteryweb.com\/products\/spectrascan-pr-655-replacement-battery-37v-3300mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}