{"product_id":"olympus-mju-9010-replacement-battery-37v-800mah-li-ion","title":"Olympus LI-50B mju 9010 Replacement Battery 3.7V 800mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eOlympus mju 9010 \/ mju Tough Series — 3.7V Li-ion Replacement Battery (LI-50B)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V, 800mAh Li-ion cell replaces the OEM LI-50B battery used in the Olympus mju 9010 and the mju Tough-6000, Tough-6010, and Tough-6020 series, along with 88 additional compatible models. It fits the same physical bay, uses the same contact layout, and runs at the same voltage as the factory cell. Capacity matches the original — 800mAh (2.96Wh) — no guesswork on what you're getting.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003emju and mju Tough platform fit:\u003c\/strong\u003e\n    These models share the LI-50B form factor — same 40.12 × 34.00 × 6.72mm envelope, same 3.7V nominal rail, and the same three-contact BMS interface. The camera body reads charge state through that interface, so the cell needs to match exactly for the indicator to function.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell in an mju Tough-6010 body. The BMS accepted the cell on first insertion, reported a valid charge state, and cycled through discharge without triggering a low-voltage cutoff event earlier than expected at the 3.0V threshold.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-cycle initialisation on the mju body:\u003c\/strong\u003e\n    Insert this cell and run a full charge from within the camera body or OEM charger before shooting. Some mju BMS firmware maps the battery-remaining display to a discharge curve it calibrates on that first cycle — skipping it causes inaccurate percentage readings from the start.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eFlash recycling lag on the mju Tough series with a new replacement cell\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe mju Tough models fire a built-in flash that pulls a sharp current spike each time the capacitor recharges between shots. A new cell at partial state of charge — or one that hasn't completed its first full cycle — may show slower recycling because the BMS temporarily limits peak draw until it has mapped the cell's internal resistance. This isn't a fault in the cell. After two to three full charge-discharge cycles, the BMS recalibrates and flash recycling returns to normal speed. If lag persists past three cycles, check that the contacts are clean and making firm contact with the battery tray.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBattery percentage jumping erratically on the mju 9010 display\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the camera's fuel gauge maps voltage thresholds to a discharge curve it calibrated on the old degraded cell, then tries to apply that same curve to a fresh replacement with a different internal resistance profile. The mismatch causes the indicator to skip levels — jumping from 80% to 40% mid-session, or reading full when the cell is at 3.85V. The fix is a full charge in the camera body, followed by a complete discharge to auto-shutoff, then a second full charge. That two-step cycle gives the BMS enough data to remap the threshold table to the new cell's actual curve.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43333845450842,"sku":"BWCS-LI50B-1","price":22.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43333845483610,"sku":"BWCS-LI50B-2","price":25.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43333845516378,"sku":"BWCS-LI50B-3","price":27.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-LI50B-1.webp?v=1778213291","url":"https:\/\/batteryweb.com\/products\/olympus-mju-9010-replacement-battery-37v-800mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}