{"product_id":"owon-powers-mso-oscilloscopes-replacement-battery-74v-10000mah-li-ion","title":"Owon Powers MSO Oscilloscope Replacement Battery 7.4V 10000mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eOwon MSO7062TD \/ MSO7102TD \/ MSO8202T — 7.4V Li-ion Replacement Battery (M1908004)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 7.4V, 10000mAh (74Wh) Li-ion replacement battery for Owon Powers MSO Oscilloscopes, including the MSO7062TD, MSO7102TD, and MSO8202T. It fits the multi-model MSO series that shares the M1908004 battery format across its portable mixed-signal instrument lineup. The pack slots into the battery bay and connects to the same BMS communication rail as the original cell.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMSO series compatibility:\u003c\/strong\u003e\n    Owon's portable MSO instruments in this lineup share a common battery bay geometry and 7.4V power rail. The BMS handshake protocol and connector pinout are consistent across MSO7062TD, MSO7102TD, MSO8202T, and the extended fit model list, which is why a single pack covers the full range without hardware modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this pack through instrument power-on, channel acquisition, and probe initialisation sequences. The BMS held steady through the current spike at probe power-up and did not trip during sustained analog and digital channel logging.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-install calibration cycle:\u003c\/strong\u003e\n    After fitting this pack, run a full calibration cycle through the instrument's system menu before field deployment. The MSO maps battery state during calibration — skipping this step causes the fuel indicator to report premature low-battery warnings on 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 MSO sat unused in a carry case for months\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLi-ion cells bleed charge slowly during storage. If an Owon MSO sits unused long enough, the pack voltage drops below the BMS's minimum recovery threshold — typically around 2.5V per cell — and the protection circuit opens, refusing charge input. The instrument will show no charge activity even when connected to a known-good adapter. To recover, connect the charger and leave it undisturbed for 20–40 minutes; some BMS controllers require a trickle current at the charge port before they re-engage the main charge path. If the pack does not respond after that window, the cells have likely dropped below 2.0V per cell and the pack needs replacement.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eVoltage dropout causing readings to reset or drift mid-logging session\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eDuring a sustained logging session with multiple active channels, the MSO draws a consistent load that a degraded or partially charged pack may not sustain cleanly. If the cell voltage sags under that load — even briefly — the instrument's internal regulators can momentarily drop below their operating threshold, causing the acquisition engine to reset or live readings to stutter. This is not a firmware fault; it is a supply voltage issue at the battery terminals. Check the pack's resting voltage after a session: if it reads below 7.0V with charge remaining on the indicator, cell degradation is the cause and the pack should be replaced.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43360545865818,"sku":"BWCS-WSN710SL-1","price":92.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43360545898586,"sku":"BWCS-WSN710SL-2","price":108.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43360545931354,"sku":"BWCS-WSN710SL-3","price":119.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-WSN710SL-1.webp?v=1778615964","url":"https:\/\/batteryweb.com\/products\/owon-powers-mso-oscilloscopes-replacement-battery-74v-10000mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}