{"product_id":"olympus-38dl-plus-ultrasonic-thickness-gauge-replacement-battery-108v-3400mah-li-ion","title":"Olympus 38-BAT Ultrasonic Thickness Gauge Replacement Battery 10.8V","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eOlympus 38DL Plus Ultrasonic Thickness Gauge — 10.8V Li-ion Replacement Battery (38-BAT)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 10.8V, 3400mAh Li-ion battery replaces the OEM 38-BAT pack in the Olympus 38DL Plus Ultrasonic Thickness Gauge. The 38DL Plus is a handheld thickness measurement instrument used in industrial inspection, pipeline surveys, and corrosion monitoring. It draws sustained current through its probe circuit during active measurement sessions, so stable voltage delivery matters.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003e38DL Plus and Epoch 4 compatibility:\u003c\/strong\u003e\n    The 38-BAT form factor is shared across the 38DL Plus and Epoch 4 platform. Both instruments use the same 10.8V three-cell configuration, the same connector pinout, and the same BMS communication handshake — which is why one pack covers both.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this pack through probe initialisation cycles and sustained measurement loads. The BMS held voltage within spec across repeated transducer power-up events and did not trip during continuous logging sequences.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eCalibration cycle after install:\u003c\/strong\u003e\n    After fitting this battery, run a full calibration cycle through the 38DL Plus instrument menu before heading to site. The gauge maps battery state during calibration — skipping it causes premature low-battery warnings to appear during your first active measurement session, even with a full charge.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBMS cutoff when the 38DL Plus probe initialises\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eWhen the 38DL Plus powers up its transducer, the probe circuit draws a sharp current spike in the first half-second of initialisation. A weakened or deeply discharged cell can drop below the BMS undervoltage threshold at that exact moment, causing an immediate shutdown that looks like a dead battery. This is a protection trip, not a failed pack. Charge the battery fully to 12.6V before the next power cycle and the BMS will reset automatically.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eReadings resetting or dropping out mid-logging session\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eDuring long data-logging runs, the 38DL Plus sustains continuous power to the probe, the display, and the internal memory write circuit simultaneously. If the cell voltage sags under that combined load — typically below 9.5V per cell group — the instrument resets its active session to protect stored data. This is a voltage-sag event, not a firmware fault. A freshly charged pack at 12.6V eliminates the sag and keeps the session stable from start to finish.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43360533250138,"sku":"BWCS-OPS380XL-1","price":41.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43360533282906,"sku":"BWCS-OPS380XL-2","price":47.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43360533315674,"sku":"BWCS-OPS380XL-3","price":52.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-OPS380XL-1.webp?v=1778615947","url":"https:\/\/batteryweb.com\/products\/olympus-38dl-plus-ultrasonic-thickness-gauge-replacement-battery-108v-3400mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}