{"product_id":"tech-line-d7-replacement-battery-252v-2300mah-li-ion","title":"Tech Line D7 Lawn Mower Replacement Battery 25.2V 2300mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eTech Line D7 \/ BZ3 \/ DZ2 \/ DZ3 — 25.2V Li-ion Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 25.2V 2300mAh (57.96Wh) lithium-ion battery for the Tech Line D7, BZ3, DZ2, and DZ3 cordless lawn mowers. It replaces the original pack when the cell capacity has dropped too far to complete a full mow. Slide it into the battery bay, lock it down, and you're back cutting.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eD7, BZ3, DZ2, DZ3 compatibility:\u003c\/strong\u003e\n    These four models share the same 25.2V battery rail, connector pin-out, and BMS handshake protocol. One pack fits all four without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this pack through blade-start inrush events on a D7 deck. The BMS held steady across repeated motor starts and recovered cleanly after a simulated heavy-grass load trip.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-season startup tip:\u003c\/strong\u003e\n    Before the first spring mow, bring the battery indoors overnight if temperatures are below 10°C. Cold Li-ion cells carry higher internal resistance, and the blade motor's inrush current can trip the BMS on a cold pack before the motor even reaches full speed.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBMS cutoff during thick-grass or wet-grass blade load\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe D7's blade motor pulls significantly more current through dense or wet grass than on a dry, short lawn. If the instantaneous current draw exceeds the BMS protection threshold, the pack shuts down to protect the cells. This is not a battery fault — it is the protection circuit doing its job. Let the pack rest for five minutes, then resume cutting at a slower walking pace to reduce motor load.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCharger refusing to accept the pack after winter storage\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eA battery left in the garage over winter can self-discharge below the charger's acceptance voltage — typically around 20V for a 25.2V pack. Most chargers will show a fault light and refuse to begin a charge cycle at this point. Some chargers include a recovery or \"boost\" mode that trickle-charges the pack back above the acceptance threshold before switching to normal charge. If your charger has no recovery mode, a compatible charger with a boost function will bring the cell voltage back to an acceptable level — aim to get it above 21V first.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43381315010650,"sku":"BWCS-ABL300VX-1","price":108.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43381315043418,"sku":"BWCS-ABL300VX-2","price":128.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43381315076186,"sku":"BWCS-ABL300VX-3","price":142.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-ABL300VX-1.webp?v=1778899944","url":"https:\/\/batteryweb.com\/products\/tech-line-d7-replacement-battery-252v-2300mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}