{"product_id":"olympus-e-m5-replacement-battery-76v-750mah-li-ion","title":"Olympus BLN-1 E-M5 Compatible Battery 7.6V 750mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eOlympus E-M5 \/ OM-D \/ E-M1 II — 7.6V Li-ion Replacement Battery (BLN-1)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 7.6V, 750mAh (5.7Wh) Li-ion replacement for the Olympus BLN-1 battery. It fits the E-M5, OM-D, EM5, and E-M1 II mirrorless camera bodies. Drop it into the battery compartment and charge via the OEM charger or camera body before shooting.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eE-M5 and OM-D series compatibility:\u003c\/strong\u003e\n    These bodies share the same battery bay dimensions, 7.6V voltage rail, and BLN-1 connector pinout. The BMS in each body reads the same authentication handshake, so one cell works across the platform without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through charge and discharge cycles on an E-M5 body. The BMS accepted the cell after one full charge cycle completed inside the camera, and the battery-remaining indicator held stable across the discharge curve without erratic jumps.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-cycle conditioning on camera bodies:\u003c\/strong\u003e\n    Complete the first full charge inside the camera body itself, not an aftermarket multi-charger. The E-M5 and OM-D BMS uses that initial cycle to map the cell's discharge curve and calibrate the battery percentage display accurately for subsequent use.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the OM-D battery percentage display reads erratically with a new BLN-1 cell\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe OM-D series maps battery percentage against voltage thresholds calibrated to the original BLN-1 cell's discharge curve. A new third-party cell has a slightly different curve — it holds voltage higher through mid-discharge, then drops faster at the low end. The camera's indicator logic sees this as erratic behaviour and may jump from 50% to low warning without warning. One full charge cycle completed inside the camera body allows the BMS to recalibrate its threshold mapping to the new cell.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eShot count lower than expected when shooting with stabilisation and continuous AF active\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe E-M5's 5-axis in-body image stabilisation, continuous phase-detect AF, and electronic viewfinder all draw current simultaneously — well beyond the base draw used to calculate rated shot counts. This combined load pulls the 750mAh cell down faster than single-frame shooting with the EVF off. To extend capacity per charge, switch the EVF to power-save mode and limit IBIS to the axes needed for your shooting situation. For sustained bursts, keep a second BLN-1 cell charged and ready — the battery bay swap takes under ten seconds.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43333766709338,"sku":"BWCS-BLN1MC-1","price":28.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43333766742106,"sku":"BWCS-BLN1MC-2","price":32.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43333766774874,"sku":"BWCS-BLN1MC-3","price":35.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-BLN1MC_1.webp?v=1778213068","url":"https:\/\/batteryweb.com\/products\/olympus-e-m5-replacement-battery-76v-750mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}