{"product_id":"ppurple-grid-k2-replacement-battery-37v-1000mah-li-ion","title":"HXE-W01 PPurple Grid K2 GPS Navigator Replacement Battery 3.7V 1000mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003ePPurple Grid K2 — 3.7V Li-ion Replacement Battery (HXE-W01)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 1000mAh Li-ion replacement cell for the PPurple Grid K2 portable GPS navigator. It matches the OEM part number HXE-W01 and fits the original battery bay without modification. Capacity is 1000mAh (3.7Wh) — identical to the factory specification.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eGrid K2 fitment:\u003c\/strong\u003e\n    The Grid K2 uses a single-cell Li-ion pack at 3.7V nominal. The BMS inside the device monitors cell voltage directly — any cell outside the accepted voltage window triggers a low-battery shutdown before the indicator reaches empty. This replacement cell operates within that window.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through charge and discharge on the bench, monitoring BMS handshake and cutoff behaviour. The protection circuit engaged correctly at the low-voltage threshold with no false trips during normal GPS draw.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst fix after installation:\u003c\/strong\u003e\n    After fitting this cell, power the Grid K2 on outdoors and let it acquire a satellite fix before use. A full power interruption wipes the ephemeris data, so the unit performs a cold start — expect 5 to 10 minutes for the first lock versus under a minute for subsequent warm starts.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eGPS accuracy reduced at low battery on the Grid K2\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eWhen cell voltage drops toward 3.4V, some GPS units reduce RF receiver gain to cut current draw and extend operation. On the Grid K2, this appears as position drift or a wider accuracy radius — the satellite count stays the same but signal quality degrades. A degraded original cell that sags under load hits this threshold earlier than its state-of-charge indicator suggests. A fresh cell holds voltage above 3.6V under typical GPS receiver and display load, keeping receiver sensitivity at full rating.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eGrid K2 shuts off without warning before the low-battery icon appears\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the original cell has developed high internal resistance — it passes enough voltage at rest to show a partial charge reading, but sags below the BMS cutoff threshold the moment GPS receiver and display load is applied. The low-battery indicator never gets the chance to display. After fitting a replacement cell, recalibrate the indicator by running the Grid K2 from a full charge through to automatic shutdown once — this lets the device relearn the actual voltage curve of the new cell.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377684840538,"sku":"BWCS-XEW01SL-1","price":21.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377684873306,"sku":"BWCS-XEW01SL-2","price":24.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377684906074,"sku":"BWCS-XEW01SL-3","price":26.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-XEW01SL-1.webp?v=1778771896","url":"https:\/\/batteryweb.com\/products\/ppurple-grid-k2-replacement-battery-37v-1000mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}