{"product_id":"trimble-5700-replacement-battery-74v-2000mah-li-ion","title":"Trimble 5700 GPS Receiver Replacement Battery 7.4V 2000mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eTrimble 5700 \/ 5800 GNSS Receiver — 7.4V Li-ion Replacement Battery (29518)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 7.4V 2000mAh Li-ion battery fits the Trimble 5700 and 5800 GNSS receivers, along with a wider range of Trimble survey instruments sharing the same battery bay. OEM part numbers covered include 29518, 38403, 46607, 52030, 92600, 92670, C8872A, and EI-D-LI1. It is a direct swap for field surveyors running extended sessions on site without access to mains charging.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003e5700 and 5800 platform fit:\u003c\/strong\u003e\n    These two receivers share the same battery bay geometry, connector pinout, and BMS communication protocol — which is why one pack covers both. The battery negotiates charge state with the receiver's internal controller over the same data line used for fuel gauge reporting.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this pack through the 5700's charge management circuit and monitored BMS handshake at power-on. The protection circuit held within spec under the initialisation current spike and passed charge-state reporting to the receiver display without error flags.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-deployment calibration:\u003c\/strong\u003e\n    After fitting this battery, run a full calibration cycle through the receiver's onboard menu before the first field session. The 5700 maps battery state during that sequence — skipping it causes the receiver to throw premature low-battery warnings partway through your first logging session, even with a full pack.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBMS cutoff when the 5700 powers up a connected antenna or external module\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eAt power-on, the 5700 simultaneously initialises its internal GNSS engine and supplies current to any connected antenna or external device on the data port. That combined inrush can hit 1.8–2.2A for 200–400ms — enough to trip an aged or cold-soaked pack's overcurrent threshold before normal operation begins. A fresh pack with healthy cells handles this spike without cutoff. If the receiver shuts off immediately at power-on with a full charge, check ambient temperature first — Li-ion internal resistance rises sharply below 5°C and makes cutoff trips more likely. Warm the pack to above 10°C and retry before assuming a fault.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003e5700 receiver shows full charge on screen but shuts down during active logging\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the receiver's battery indicator is reading open-circuit voltage from a resting pack, then the load during active satellite tracking drops cell voltage below the receiver's cutoff threshold mid-session. It is a voltage-sag issue, not a capacity issue — the pack may genuinely hold 2000mAh but cannot sustain the discharge rate under full GNSS load without dropping below 6.0V. After fitting a new pack, run the calibration cycle so the receiver re-maps the voltage-to-capacity curve against your actual cells. On the first post-calibration session, the percentage readout will stabilise and track accurately through the logging window.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43360795525210,"sku":"BWCS-LI1SL-1","price":32.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43360795557978,"sku":"BWCS-LI1SL-2","price":37.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43360795590746,"sku":"BWCS-LI1SL-3","price":41.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-LI1SL-1.webp?v=1778616259","url":"https:\/\/batteryweb.com\/products\/trimble-5700-replacement-battery-74v-2000mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}