{"product_id":"ezgps-ps-3100-replacement-battery-37v-1000mah-li-ion","title":"ezGPS PS-3100 GPS Navigator Replacement Battery 3.7V 1000mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eezGPS PS-3100 — 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 ezGPS PS-3100 portable GPS navigator. It fits using OEM part number HXE-W01 and restores power to the unit when the original cell can no longer hold a charge. Dimensions are 52.96 × 33.64 × 5.15mm — measure your original before fitting.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePS-3100 fit:\u003c\/strong\u003e\n    The PS-3100 runs a single-cell 3.7V Li-ion configuration with no active battery management handshake — the unit reads voltage directly, so cell quality and accurate capacity rating matter more here than on BMS-gated platforms.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through full charge and discharge passes on the bench. Voltage held within spec across the discharge curve, and the cell reached full charge without thermal anomaly.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eCold-start after power interruption:\u003c\/strong\u003e\n    After fitting this cell, power the PS-3100 on outdoors and let it acquire a satellite fix before navigating. A full power interruption triggers a cold start — first fix can take 5–10 minutes. Subsequent warm starts drop to under a minute once almanac data is cached.\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 PS-3100\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eAs voltage drops toward the low-threshold cutoff, some GPS receivers reduce RF front-end sensitivity to conserve power. On the PS-3100, this can show up as position drift or wider accuracy circles before the unit shuts down. It is not a firmware bug — it is the receiver pulling back power from the antenna amplifier. Keeping the cell above 3.5V during active navigation prevents the sensitivity reduction from kicking in.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003ePS-3100 shuts off without warning before the battery indicator empties\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eAfter a battery swap, the PS-3100's fuel gauge is uncalibrated — it has no reference point for the new cell's discharge curve. The unit can show two or three bars remaining and shut off without warning because the voltage-threshold cutoff hits before the visual indicator catches up. Run two full charge-discharge cycles to let the gauge recalibrate. After that, the indicator will track closely enough to give usable warning before shutdown.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377704370266,"sku":"BWCS-XEW01SL-1","price":21.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377704403034,"sku":"BWCS-XEW01SL-2","price":24.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377704435802,"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\/ezgps-ps-3100-replacement-battery-37v-1000mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}