{"product_id":"environment-e-2db-replacement-battery-74v-2600mah-li-ion","title":"Environment E-2DB 7.4V Replacement Battery E-MINI-LXOB 2600mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eEnvironment E-2DB \/ E-5DB Series — 7.4V Li-ion Replacement Battery (E-MINI-LXOB)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 7.4V, 2600mAh Li-ion replacement battery for the Environment E-2DB and E-5DB portable environmental survey instruments. It matches the OEM part number E-MINI-LXOB and fits the physical bay and connector of both models. Capacity is rated at 19.24Wh — identical to the original pack specification.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eE-2DB and E-5DB compatibility:\u003c\/strong\u003e\n    Both models share the same battery bay dimensions, connector pinout, and BMS handshake protocol, which is why a single pack covers both. The 7.4V nominal rail is what each instrument's internal regulator expects — substituting a pack outside that voltage range will trigger a hardware fault on startup.\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, probe initialisation, and sustained sensor logging. The BMS handled the current spike at probe power-up without tripping, and cell voltage held stable under continuous measurement load.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePre-deployment calibration cycle:\u003c\/strong\u003e\n    After installing this battery, run a full calibration sequence through the instrument menu before heading into the field. The E-2DB and E-5DB map battery state during calibration — skipping this step causes the instrument to flag premature low-battery warnings on the first 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 probe module initialises\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eWhen the E-2DB powers up a connected probe, there is a short current spike as the probe's internal circuitry initialises. If the battery's state of charge is below roughly 20%, the BMS reads that spike as an overload condition and cuts the output to protect the cells. The instrument then shuts down immediately — even though the display may have shown an adequate charge level a moment before. Charge the pack to at least 3.8V per cell (7.6V total at the pack terminals) before connecting probes in the field.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003ePack will not charge after months stored in the carry case\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLi-ion cells self-discharge during storage, and if the pack drops below approximately 2.5V per cell, the BMS enters a sleep state and blocks the charge circuit entirely — the instrument's charging indicator will show nothing. This is a protection state, not a dead pack. Connect the pack to the instrument's charger and leave it for 15–20 minutes; many chargers apply a low-current pre-charge pulse that nudges the voltage back above the BMS recovery threshold of around 2.9V per cell, after which normal charging resumes.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43360667664474,"sku":"BWCS-EMT200SL-1","price":32.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43360667697242,"sku":"BWCS-EMT200SL-2","price":37.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43360667730010,"sku":"BWCS-EMT200SL-3","price":41.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-EMT200SL-1.webp?v=1778616161","url":"https:\/\/batteryweb.com\/products\/environment-e-2db-replacement-battery-74v-2600mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}