{"product_id":"lazer-runner-compatible-6800-mah-4-cell-li-ion-battery-pack-replacement-battery-74v-5800mah-li-ion","title":"Lazer Runner 7.4V Laser Tag Compatible Battery 5800mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eLazer Runner ICR18650 2S2P — 7.4V Li-ion Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 7.4V, 5800mAh Li-ion battery replaces the 4-cell pack used in Lazer Runner laser tag systems and compatible electronic targeting equipment. It runs in a 2S2P configuration using ICR18650 cells. At 42.92Wh, it matches the energy profile the original pack was built around.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003e2S2P cell configuration:\u003c\/strong\u003e\n    Two cells in series set the 7.4V nominal rail; two parallel pairs double the capacity. The BMS expects this architecture — swapping to a mismatched cell count will trigger protection cutoff on most Lazer Runner units.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this pack through full charge and discharge on a compatible Lazer Runner unit. The BMS held voltage within expected limits during peak draw events, and the protection circuit responded correctly to overcurrent spikes from transmitter bursts.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eLaser output and voltage floor:\u003c\/strong\u003e\n    Lazer Runner units begin dropping laser hit-detection accuracy once pack voltage falls below roughly 6.8V. Do not run sessions to complete shutdown — swap or recharge before the unit starts flashing its low-voltage indicator.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy Lazer Runner units drop hit registration before the battery reads empty\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe IR transmitter and receiver circuits in Lazer Runner equipment are voltage-sensitive. As pack voltage sags under load, transmitter pulse strength falls first — the display may still show charge remaining while the IR signal is already too weak for reliable tag detection. This is not a fault with the battery or the unit. It is how the power delivery is prioritised inside the hardware. Recharging the pack restores full transmitter output immediately.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003ePack not recognised or unit powers off instantly after fitting new battery\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis usually means the BMS entered a protection state during storage or shipping. The cell voltage may have drifted below the reinitialisation threshold — typically 6.0V for a 2S pack. Connect the battery to the charger before inserting it into the unit and confirm the charger shows an active charge current rather than a fault light. Once the pack reaches approximately 7.0V, the BMS resets and the unit should power on normally.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43381277458522,"sku":"BWCS-LRN100XL-1","price":45.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43381277491290,"sku":"BWCS-LRN100XL-2","price":53.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43381277524058,"sku":"BWCS-LRN100XL-3","price":58.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-LRN100XL-1.webp?v=1778899918","url":"https:\/\/batteryweb.com\/products\/lazer-runner-compatible-6800-mah-4-cell-li-ion-battery-pack-replacement-battery-74v-5800mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}