{"product_id":"ego-cs1400-replacement-battery-56v-8000mah-li-ion","title":"EGO CS1400 Replacement Battery 56V 8000mAh BA1400T","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eEGO CS1400 \/ CS1600 Series — 56V Li-ion Replacement Battery (BA1400T)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 56V 8000mAh (448Wh) lithium-ion replacement battery for EGO cordless chainsaws. It fits the CS1400, CS1403, CS1600, CS1604, and 19 additional EGO models. It replaces OEM part numbers including BA1400T, BA2800T, BA4200T, BA5600T, BA5675, BA6720T, and BT2240T.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCS1400 and CS1600 platform fit:\u003c\/strong\u003e\n    These chainsaw models share the same 56V ARC Lithium battery platform — same voltage rail, same battery connector, and the same BMS communication protocol. Any EGO battery carrying a BA-series part number in this voltage class seats and handshakes correctly across all listed models.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this pack through motor-start inrush cycles on a CS1600 bar. The BMS held through repeated blade-contact load spikes without tripping. Cell balancing stayed within 20mV across all cell groups after 10 consecutive discharge cycles.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eSeasonal storage conditioning:\u003c\/strong\u003e\n    After winter storage, charge the battery fully before the first cut of the season, then run the chainsaw at half throttle for two full cycles before any sustained full-load cutting. Cold-stored Li-ion cells need those low-load cycles to recover full current delivery before handling peak motor inrush at blade contact.\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 chainsaw motor-start inrush surge\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eWhen a chainsaw bar contacts wood under load, the motor draws a sharp current spike — often 3–5× the steady running current. On a new or cold battery, the BMS may interpret that spike as an over-current fault and cut power instantly. This is a protection response, not a battery defect. Running two or three low-load warm-up cycles first stabilises internal resistance across the cell groups and raises the BMS's effective trip threshold during normal cutting.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCharger showing no LED response on a new pack\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eEGO's standard chargers require the pack voltage to sit above approximately 42V before the charger accepts the battery and starts the charge cycle. A new replacement pack that has self-discharged during shipping or storage may arrive below that threshold. The charger sees an under-voltage condition and refuses to initiate. Connect the battery to an EGO CHUI320E or compatible rapid charger for 15–20 seconds, remove it, then reseat it firmly — this brief contact can prompt the charger's pre-charge circuit to engage and bring the pack up to acceptance voltage.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43175805812826,"sku":"BWCS-EHT400PH-1","price":2014.99,"currency_code":"USD","in_stock":false},{"title":"Warranty 2 Year","offer_id":43175805845594,"sku":"BWCS-EHT400PH-2","price":2414.99,"currency_code":"USD","in_stock":false},{"title":"Warranty 3 Year","offer_id":43175805878362,"sku":"BWCS-EHT400PH-3","price":2714.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-EHT400PH_1.webp?v=1775195525","url":"https:\/\/batteryweb.com\/products\/ego-cs1400-replacement-battery-56v-8000mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}