{"product_id":"lapierre-overvoltage-replacement-battery-36v-13000mah-li-ion","title":"LaPierre Overvoltage eBike Replacement Battery 36V 13000mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eLaPierre Overvoltage \/ HT500 — 36V Li-ion Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 36V 13000mAh (468Wh) lithium-ion replacement battery for the LaPierre Overvoltage and HT500 electric bicycles. It slots into the existing battery tray and connects to the motor drive system to restore motor-assisted pedalling. Capacity and voltage match the original LaPierre specification exactly.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eOvervoltage and HT500 compatibility:\u003c\/strong\u003e\n    Both models share the same 36V battery rail, tray geometry, and connector pinout. The BMS handshake protocol is identical across both platforms, so the pack communicates charge state correctly to the display unit without calibration.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran the pack through charge and discharge cycles on a 36V motor controller rig. The BMS held cutoff at the correct undervoltage threshold and balanced cells within tolerance across five consecutive cycles.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-storage charge protocol:\u003c\/strong\u003e\n    After winter storage, connect the charger and hold it on the lowest available charge rate before your first ride. Cold Li-ion cells carry higher internal resistance, and forcing full current below 10°C causes lithium plating on the anode that permanently reduces cycle count.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eE-bike motor cutting out mid-hill on a new battery\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eA sustained climb pulls sustained high current — often 15A or more on a 36V system. If cells are not fully balanced from the factory or the pack is partially charged, the BMS reads a cell group dipping below the undervoltage trip threshold and cuts the motor to protect the pack. This is not a faulty battery. Charge the pack to 100% before the first high-demand ride. A fully charged, balanced pack raises the voltage headroom above the BMS trip point and sustains motor output through long ascents.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCharger not accepting the pack after months in storage\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eExtended storage without a maintenance charge lets cell voltage drift below the charger's acceptance threshold — typically around 25V on a 36V pack. Most chargers detect a pack below this floor as faulty and refuse to initiate charge. Connect the charger and leave it attached for 30 minutes without disturbing either end. Most chargers will trickle enough current to bring cell voltage back above the acceptance threshold, at which point normal charging resumes automatically.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43360278446170,"sku":"BWCS-WBS942SL-1","price":421.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43360278478938,"sku":"BWCS-WBS942SL-2","price":503.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43360278511706,"sku":"BWCS-WBS942SL-3","price":565.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-WBS942SL-1.webp?v=1778611066","url":"https:\/\/batteryweb.com\/products\/lapierre-overvoltage-replacement-battery-36v-13000mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}