{"product_id":"stihl-hsa-25-replacement-battery-108v-2500mah-li-ion","title":"Stihl HSA 25 Cordless Shears 10.8V Replacement Battery","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eStihl Cordless Shrub and Grass Shears — 10.8V Li-ion Replacement Battery\u003c\/h2\u003e\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 10.8V, 2500mAh lithium-ion replacement battery for the Stihl HSA 25 cordless shrub and grass shears. The HSA 25 is a handheld landscaping tool used for trimming hedges and cutting grass edges. Part number 45154006500 confirms direct fitment for the models listed below.\u003c\/p\u003e\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eHSA 25 compatibility:\u003c\/strong\u003e The HSA 25 and HSA 25 Cordless Shrub and Grass Shears share the same 10.8V power rail, battery connector, and BMS handshake — one battery fits all three variants.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e We ran full charge\/discharge cycles on this cell — the BMS held voltage steady under cutting load and triggered the low-voltage cutoff cleanly without drop-off or thermal fault.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eFirst charge after storage:\u003c\/strong\u003e Li-ion cells ship partially charged. Run a full charge before first use to let the BMS calibrate state-of-charge correctly — this improves capacity accuracy over time.\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \u003chr class=\"bpw-desc-divider\"\u003e\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the 10.8V rail matters for shear blade performance\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe HSA 25 blade motor is tuned to a 10.8V nominal input. Voltage sag under load directly affects blade speed and cut quality. A healthy cell with a functioning BMS maintains voltage closer to the nominal rating during cutting bursts. Capacity at 2500mAh gives the cell enough headroom to handle repeated short cutting cycles without hitting the low-voltage cutoff prematurely.\u003c\/p\u003e\n  \u003ch3 class=\"bpw-desc-h3\"\u003eShears losing power mid-cut — what causes it and how to fix it\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eIf the HSA 25 slows noticeably during a cut and then recovers at rest, the BMS is triggering a temporary overcurrent response — not a dead battery. This usually means the existing cells have degraded and can no longer sustain current demand under blade load. Fitting a fresh 2500mAh cell restores the current headroom the motor needs. If the new battery shows the same symptom, check the blade for debris or binding, which increases motor draw.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43175820230746,"sku":"BWCS-SHA250PX-1","price":44.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43175820263514,"sku":"BWCS-SHA250PX-2","price":51.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43175820296282,"sku":"BWCS-SHA250PX-3","price":57.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-SHA250PX_1.webp?v=1775236276","url":"https:\/\/batteryweb.com\/products\/stihl-hsa-25-replacement-battery-108v-2500mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}