{"product_id":"hi-target-ihand-30-data-controller-replacement-battery-37v-4000mah-li-ion","title":"Hi-Target BLP-5200S ihand 30 Replacement Battery 3.7V 4000mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHi-Target ihand 30 Data Controller — 3.7V Li-ion Replacement Battery (BLP-5200S)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 4000mAh Li-ion replacement battery for the Hi-Target ihand 30 data controller. The ihand 30 is a field data controller used in geodetic and construction surveying. It replaces OEM part BLP-5200S directly, matching the original voltage, connector, and BMS communication profile.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eihand 30 platform fit:\u003c\/strong\u003e\n    The ihand 30 runs a dedicated BMS handshake that monitors cell voltage and communicates charge state to the firmware. This pack matches that handshake — voltage rail, connector pinout, and protection circuit all align with the original spec. Substituting a generic 3.7V pack without the correct BMS profile causes the device to reject the battery or report incorrect charge state.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this pack through full charge and discharge sequences on the ihand 30, monitoring BMS cutoff behaviour at both ends. The protection circuit engaged cleanly at high-side voltage and recovered correctly from low-side cutoff without requiring a manual reset.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-install calibration on the ihand 30:\u003c\/strong\u003e\n    After fitting a new pack, run a full calibration cycle through the instrument menu before deploying to the field. The ihand 30 maps battery state during calibration — skipping this step causes premature low-battery warnings during the first survey session, even when the pack is fully charged.\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 ihand 30 sat unused in a carry case for months\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLi-ion cells in a stored pack self-discharge slowly. If the ihand 30 sat unused long enough, cell voltage can drop below the BMS recovery threshold — typically around 2.5V per cell. Below that threshold, the BMS enters a locked state and the device will not power on, even when connected to a charger. To recover, connect the pack to a charger that supports trickle or pre-charge mode and leave it for at least 30 minutes before attempting to power on the instrument. If the pack fails to recover above 3.0V per cell after an extended trickle charge, the cells have degraded past recovery and the pack needs replacement.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eihand 30 display showing an inconsistent battery percentage after reboot\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eWhen a new pack goes in, the ihand 30's charge indicator recalibrates its voltage-threshold mapping to the new cells. Until that calibration completes, the percentage display jumps — showing 80% one boot, 55% the next, with no actual discharge between sessions. This is not a fault in the battery. Run the instrument through at least one complete charge and discharge cycle, then perform the calibration sequence in the instrument menu. After that, the display stabilises and tracks correctly against the new pack's actual capacity.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43360449003610,"sku":"BWCS-TRH300SL-1","price":76.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43360449036378,"sku":"BWCS-TRH300SL-2","price":90.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43360449069146,"sku":"BWCS-TRH300SL-3","price":101.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-TRH300SL-1.webp?v=1778614761","url":"https:\/\/batteryweb.com\/products\/hi-target-ihand-30-data-controller-replacement-battery-37v-4000mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}