{"product_id":"hitachi-vlh100l-replacement-battery-74v-3400mah-li-ion","title":"Hitachi VLH100L Replacement Battery M-BPL30 7.4V 3400mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHitachi VLH100L \/ VM-BPL Series — 7.4V Li-ion Replacement Battery (M-BPL30)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 7.4V, 3400mAh Li-ion cell that replaces the M-BPL30 and related VM-BPL part numbers in Hitachi camcorders. It fits the VLH100L, VM-645LA, VM835LA, and over 100 additional models in the same series. Voltage and connector pinout match OEM spec — the BMS sees it as a native cell on most bodies.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eVM-BPL platform compatibility:\u003c\/strong\u003e\n    The VLH100L and VM-6xx\/8xx series share a common battery bay and communication bus. Hitachi used the same voltage rail and BMS handshake across these models, which is why one part number covers such a wide fit list.\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 a VLH100L body. The BMS accepted the cell without rejection flags, and cell voltage held stable across the discharge curve at 7.4V nominal.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-use charge cycle on Hitachi camcorder bodies:\u003c\/strong\u003e\n    Insert the new battery and run one full charge cycle inside the camcorder body or OEM charger before shooting. Some Hitachi BMS firmware maps the battery-remaining indicator to a discharge curve it only calibrates after that first in-body charge — skipping this step can cause the indicator to read inaccurately 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\"\u003eWhy the VLH100L shows a dead battery indicator on a partially charged replacement cell\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eHitachi camcorder bodies use a voltage-threshold map to translate cell voltage into a battery-remaining display. A new Li-ion cell has a slightly different resting voltage profile than a broken-in OEM cell, and the body's firmware can misread the threshold at low and mid states of charge. This causes the indicator to drop to empty — or flash a warning — even when the cell still holds usable charge. One full charge and discharge cycle inside the body recalibrates the threshold mapping. After that cycle, the indicator tracks accurately against the new cell's discharge curve.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBattery percentage jumping erratically mid-recording on the VLH100L\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the camcorder's BMS samples voltage during a high-draw moment — typically when the sensor, recording processor, and image stabilisation circuit all pull current simultaneously. The instantaneous voltage sag makes the cell look more depleted than it is, and the display jumps down by 10–20 percent before recovering. It is a reporting artefact, not a cell fault. To confirm the cell is healthy, check resting voltage with a multimeter after recording stops — a healthy cell should read above 7.2V at rest after moderate use.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43333665882202,"sku":"BWCS-SVD280MC-1","price":34.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43333665914970,"sku":"BWCS-SVD280MC-2","price":39.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43333665947738,"sku":"BWCS-SVD280MC-3","price":43.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-SVD280MC-1.webp?v=1778213032","url":"https:\/\/batteryweb.com\/products\/hitachi-vlh100l-replacement-battery-74v-3400mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}