{"product_id":"gardena-rasenschere-replacement-battery-72v-3000mah-ni-mh","title":"Gardena Accu90 7.2V Grass Shears Replacement Battery 3000mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eGardena Cordless Grass Shears — 7.2V Ni-MH Replacement Battery\u003c\/h2\u003e\n  \u003cp class=\"bpw-desc-lead\"\u003eThis listing is for a 7.2V 3000mAh Ni-MH replacement battery for the Gardena Rasenschere and Gartenschere cordless grass shears. It fits the Accu90 battery platform used in models 8804 and 8820 — handheld cutting tools used for trimming grass edges and small hedges. Capacity is 3000mAh (21.6Wh), matching the original specification.\u003c\/p\u003e\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eAccu90 platform compatibility (8804, 8820):\u003c\/strong\u003e Both models share the same 7.2V Accu90 battery rail, connector format, and BMS communication — one battery serves both without modification.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e We ran full charge\/discharge cycles — the BMS held voltage steady under cutting load and tripped cleanly at the low-voltage cutoff without over-discharging the cells.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eFirst charge on Ni-MH:\u003c\/strong\u003e Run the battery through two to three full charge\/discharge cycles before regular use — Ni-MH cells reach rated capacity only after conditioning, not straight out of the box.\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \u003chr class=\"bpw-desc-divider\"\u003e\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy Ni-MH chemistry suits low-voltage grass shears\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eAt 7.2V, Ni-MH cells deliver a flat discharge curve that keeps motor torque consistent through most of the charge cycle. This matters for shears — blade speed stays even rather than dropping off early. Ni-MH also tolerates the short, interrupted duty cycles typical of edge trimming without the stress that Li-ion cells can accumulate from repeated shallow pulls.\u003c\/p\u003e\n  \u003ch3 class=\"bpw-desc-h3\"\u003eShears losing power mid-task — what's causing it and how to fix it\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eIf the shears slow noticeably before the battery indicator shows low charge, the cells have likely developed voltage depression from repeated partial charges — a known Ni-MH issue. The fix is a deliberate full discharge followed by a slow full charge, repeated two to three times. This resets cell balance across the pack and restores usable capacity. Avoid storing the pack in a partially charged state for extended periods, as this accelerates the problem.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43175825342554,"sku":"BWCS-GRA882PW-1","price":54.62,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43175825375322,"sku":"BWCS-GRA882PW-2","price":65.54,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43175825408090,"sku":"BWCS-GRA882PW-3","price":73.74,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-GRA882PW-1.webp?v=1775236298","url":"https:\/\/batteryweb.com\/products\/gardena-rasenschere-replacement-battery-72v-3000mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}