{"product_id":"bosch-universal-pump-18v-replacement-battery-18v-2000mah-li-ion","title":"Bosch 18V Cordless Air Pump Replacement Battery 2000mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eBosch UniversalPump 18V — 18V Li-ion Replacement Battery\u003c\/h2\u003e\n  \u003cp class=\"bpw-desc-lead\"\u003eAn 18V 2000mAh lithium-ion replacement battery for the Bosch UniversalPump 18V cordless air pump and a wide range of compatible 18V POWER FOR ALL devices. The UniversalPump inflates tires, sports balls, and air mattresses at up to 10.3 bar — so the battery needs to hold voltage under sustained pressure demand. This pack is rated at 36Wh and uses the standard Bosch 18V slide-rail format.\u003c\/p\u003e\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePOWER FOR ALL platform compatibility:\u003c\/strong\u003e All listed models share the same 18V voltage rail, slide-on connector, and BMS communication protocol — one battery moves between the pump, fan, drill, and sprayer without adapters.\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 load and triggered the low-voltage cutoff cleanly without dropping the pack into an error state.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eFirst charge after storage:\u003c\/strong\u003e If the pack has been sitting, run a full charge before use — Li-ion cells that ship partially charged benefit from one complete cycle to let the BMS calibrate the state-of-charge display accurately.\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \u003chr class=\"bpw-desc-divider\"\u003e\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy sustained pressure loads stress an 18V battery differently than a drill\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eAn air pump running at 10.3 bar draws current continuously rather than in short bursts. That sustained draw generates more heat in the cells than intermittent tool use. The BMS in this pack monitors cell temperature alongside voltage, throttling output before heat becomes a problem. Avoid back-to-back inflation sessions without a short rest between them — the pump motor and the battery both benefit from it.\u003c\/p\u003e\n  \u003ch3 class=\"bpw-desc-h3\"\u003ePump stops mid-inflation and won't restart\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis usually means the BMS triggered a low-voltage cutoff, not a dead cell. High-pressure inflation near the 10.3 bar ceiling pulls peak current, which can sag cell voltage briefly and trip the cutoff early. Remove the battery, wait two minutes, then reseat it — most BMS circuits reset once the load is removed and voltage recovers. If the pump doesn't restart after a full recharge, check the rail contacts for debris before assuming a fault.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43175810596954,"sku":"BWCS-BMU180PW-1","price":77.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43175810629722,"sku":"BWCS-BMU180PW-2","price":90.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43175810662490,"sku":"BWCS-BMU180PW-3","price":99.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-BMU180PW-1.webp?v=1775236243","url":"https:\/\/batteryweb.com\/products\/bosch-universal-pump-18v-replacement-battery-18v-2000mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}