{"product_id":"prophet-ei-replacement-battery-36v-11600mah-li-ion","title":"Prophet E.I. Replacement Battery 36V 11600mAh Li-ion SDI Side-Click","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eProphet E.I. Series — 36V Li-ion Replacement Battery (SDI-3610C \/ SDI-3611C)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 36V, 11,600mAh (417.6Wh) lithium-ion battery for the Prophet E.I. and related eBike models. It fits the side-click mounting system used across the E.I., EAlu City Comfort, Alu-City Comfort Plus, and Alu-City Didi-Thurau Edition, plus nine additional models in the same frame family. Replaces OEM part numbers SDI Side-Click 36V, SDI-3610C, and SDI-3611C.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eE.I. and Alu-City frame compatibility:\u003c\/strong\u003e\n    These models share a 36V motor rail and the same side-click latch geometry. The battery management system handshake and connector pinout are identical across the listed variants, so one pack covers the full lineup without adapter changes.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this pack through a full charge-discharge cycle on the E.I. platform. The BMS held cell balance across all groups, and the over-current protection tripped correctly at motor-start surge before resetting cleanly — no manual intervention needed.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-winter first-ride charging:\u003c\/strong\u003e\n    After any storage period in cold conditions, charge this pack at the lowest available charger rate before the first ride. Cold Li-ion cells carry higher internal resistance, and pushing fast charge current below 10°C causes lithium plating on the anode that permanently cuts cycle life.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eMotor cutting out mid-hill on a fresh Prophet pack\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eA sustained climb pulls continuous high current from the battery — often 15A or more depending on rider weight and gradient. If the BMS reads that current as an over-current event, it trips the output protection and cuts power to the motor controller. This pack's BMS is calibrated for the 36V motor used across the E.I. range, so trip thresholds match the motor's actual draw profile. If cut-outs still occur on steep grades, check that the battery contacts and latch are fully seated — a loose connection raises contact resistance and mimics an over-current condition.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCharger shows no activity after the Prophet battery sat unused all winter\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eA Li-ion pack stored for several months can drop below the charger's acceptance voltage — typically around 25V for a 36V pack. Most chargers refuse to push current into a pack they read as deeply discharged, so the charge indicator stays dark or flashes an error. Connect the charger anyway and leave it for 30 minutes without interrupting the connection. Once cell voltage climbs back above the acceptance threshold, the charger resumes normal operation and the indicator switches to a steady charge state.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43360276578394,"sku":"BWCS-PRT360SL-1","price":363.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43360276611162,"sku":"BWCS-PRT360SL-2","price":433.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43360276643930,"sku":"BWCS-PRT360SL-3","price":485.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-PRT360SL-1.webp?v=1778611066","url":"https:\/\/batteryweb.com\/products\/prophet-ei-replacement-battery-36v-11600mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}