{"product_id":"aeg-mc-bs12ca-replacement-battery-12v-3000mah-li-ion","title":"AEG MC-BS12CA 12V Replacement Battery 3000mAh Li-ion","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eAEG MC-BS12CA — 12V Li-ion Replacement Battery (BS12CA)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 12V Li-ion battery rated at 3000mAh (36Wh), built to fit AEG's MC-BS12CA cordless tool platform. It slots into AEG 12V drills, impact drivers, and other handheld tools that take the BS12CA pack. The connector and BMS handshake match the original AEG pack exactly.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eAEG 12V platform fit:\u003c\/strong\u003e\n    These tools share a common 12V rail, a fixed terminal layout, and a BMS communication protocol that the charger checks before accepting a charge cycle. A pack that doesn't match that handshake won't charge — this one does.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this pack through simulated motor-start inrush cycles on a 12V drill platform. The BMS held through repeated trigger pulls without tripping the overcurrent cutoff and balanced the cells correctly across charge cycles.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-use load cycling on AEG 12V tools:\u003c\/strong\u003e\n    Run the tool at half load for two cycles before pushing to maximum torque. This lets the BMS log motor inrush current draw and set accurate overcurrent thresholds before heavy application.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBMS cutoff on motor-start inrush in AEG 12V drills\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eWhen a 12V drill motor starts under load, the inrush current spike can hit three to five times the running current in the first milliseconds. A fresh or degraded pack with a sensitive BMS threshold will trip the overcurrent protection at that spike and shut the tool down instantly. The fix is to start with no load on the bit — let the motor spin up unloaded, then apply pressure. After two or three normal cycles, the BMS recalibrates its threshold and handles loaded starts without cutting out.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCharger won't recognise the new pack after storage\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLi-ion cells self-discharge during shipping and storage. If the cell voltage drops below approximately 2.5V per cell, most AEG chargers refuse to enter the charge cycle — the indicator blinks or shows a fault instead of charging. Place the pack in the charger and leave it for 20 to 30 minutes without removing it; many chargers include a recovery trickle that slowly raises cell voltage back above the acceptance threshold. If the charger still won't engage after 30 minutes, check that the terminal contacts on the pack are clean and seated fully in the charger bay.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43416046403674,"sku":"BWCS-ABM120PX-1","price":68.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43416046436442,"sku":"BWCS-ABM120PX-2","price":80.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43416046469210,"sku":"BWCS-ABM120PX-3","price":89.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-ABM120PX-1.webp?v=1779759665","url":"https:\/\/batteryweb.com\/products\/aeg-mc-bs12ca-replacement-battery-12v-3000mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}