{"product_id":"sokkia-set-200-replacement-battery-74v-2200mah-li-ion","title":"Sokkia BDC46 SET 200 Replacement Battery 7.4V 2200mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eSokkia SET 200 \/ SDL30 Series — 7.4V Li-ion Replacement Battery (BDC46)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 7.4V 2200mAh Li-ion battery replaces the BDC46 pack used in the Sokkia SET 200 and SDL30 total stations. It fits a wide range of Sokkia survey instruments including the SCT6 and SDL50. The cells meet the voltage and current draw requirements of the EDM module and onboard data logger.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSET 200, SCT6, SDL30, and SDL50 compatibility:\u003c\/strong\u003e\n    These instruments share the same 7.4V battery bay, BDC46 connector keying, and BMS handshake protocol — one pack covers the full platform without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this pack through EDM initialisation and continuous angle-logging on a SET 200. The BMS held within spec during the EDM power-up current spike and did not trip under sustained sensor 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 cycle through the instrument's system menu before field deployment. The SET 200 maps battery state during calibration — skipping this step causes the low-battery warning to trigger early on your first measurement session.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBMS lockout after the instrument sat unused in a carry case for months\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLi-ion cells left unused in a closed instrument bay self-discharge slowly. If the pack drops below approximately 2.5V per cell, the BMS enters a protective lockout and the instrument will not power on — even when placed on the charger. The charger sees the pack as a fault condition and halts. A dedicated Li-ion recovery charger that supplies a low precharge current (around 0.1C) can bring the cells back above the BMS recovery threshold, typically 3.0V per cell, at which point normal charging resumes.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eSET 200 shuts down mid-measurement with battery indicator still showing charge\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when cell capacity has faded enough that voltage sags sharply under the combined draw of the EDM and data logger — even though the resting voltage looked acceptable. The instrument's cutoff circuit responds to instantaneous voltage drop, not resting voltage, so a partially degraded pack can appear fine at idle and then trip the cutoff the moment the EDM fires. Replacing the pack and running the calibration cycle resets the instrument's voltage-threshold mapping. Confirm the new pack reads 7.4V at rest before the first field session.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43360791920730,"sku":"BWCS-SDC46SL-1","price":31.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43360791953498,"sku":"BWCS-SDC46SL-2","price":36.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43360791986266,"sku":"BWCS-SDC46SL-3","price":39.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-SDC46SL-1.webp?v=1778616277","url":"https:\/\/batteryweb.com\/products\/sokkia-set-200-replacement-battery-74v-2200mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}