{"product_id":"topcon-hiper-pro-replacement-battery-74v-4400mah-li-ion","title":"Topcon Hiper Pro 7.4V Replacement Battery 24-030001-01","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eTopcon Hiper Pro \/ Hiper Lite Plus Series — 7.4V Li-ion Replacement Battery (24-030001-01)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 7.4V 4400mAh Li-ion battery replaces OEM part 24-030001-01 in Topcon GNSS receivers. It fits the Hiper Pro, Hiper Lite Plus, Hiper-L1, Hiper Ga, and six additional models in the same family. Same voltage, same capacity, same connector orientation as the factory pack.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eHiper series cross-compatibility:\u003c\/strong\u003e\n    These receivers share a common 7.4V power rail, connector footprint, and BMS handshake protocol across the Hiper Pro, Hiper Lite Plus, Hiper-L1, and Hiper Ga. One pack fits all without firmware conflicts or charge indicator errors.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this pack through a full charge and discharge cycle on a Hiper Pro unit. The BMS accepted the charge handshake immediately, the receiver reported accurate state-of-charge, and thermal sensors registered no anomalies under sustained GNSS tracking load.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-install calibration cycle:\u003c\/strong\u003e\n    After fitting a new pack, run a full calibration sequence through the Hiper instrument menu before heading to site. The receiver maps battery state during that cycle — skipping it causes the low-battery warning to fire early on your first measurement session, even with a fully charged 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 Hiper Pro initialises its satellite tracking module\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eAt power-on, the Hiper Pro's RF front-end and satellite tracking module draw a sharp current spike lasting roughly one second. On a degraded or deeply discharged cell, that spike can push the pack below the BMS protection threshold, triggering an immediate cutoff before the receiver finishes booting. This is not a firmware fault — it is the BMS doing exactly what it should. A fresh cell with full capacity absorbs the startup surge without voltage collapsing far enough to trip the threshold. If cutoff keeps occurring after a confirmed full charge, check that the battery contacts on the receiver bay are clean and making solid contact.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eHiper receiver powers on but shuts down mid-USB data transfer to PC\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eUSB data transfer to the office PC adds a second load on top of active GNSS processing — the receiver's CPU, radio module, and USB controller all draw simultaneously. On a partially discharged pack, the combined draw causes voltage to sag below the operating threshold, and the receiver shuts off before the transfer completes. This is not a USB driver issue. Charge the pack to full before starting any post-field data offload, and confirm the receiver's battery indicator shows at least two bars before initiating the transfer. Full charge sits at 8.4V at the pack terminals.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43360791396442,"sku":"BWCS-TOP101SL-1","price":44.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43360791429210,"sku":"BWCS-TOP101SL-2","price":52.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43360791461978,"sku":"BWCS-TOP101SL-3","price":57.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-TOP101SL-1.webp?v=1778616277","url":"https:\/\/batteryweb.com\/products\/topcon-hiper-pro-replacement-battery-74v-4400mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}