{"product_id":"trimble-mobile-mapper-100-replacement-battery-37v-7800mah-li-ion","title":"Trimble Mobile Mapper 100 Replacement Battery PM5 3.7V 7800mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eTrimble Mobile Mapper 100 \/ MobileMapper 120 — 3.7V Li-ion Replacement Battery (PM5)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V, 7800mAh Li-ion battery replaces OEM part numbers PM5, 206402A, 206402B, 206402C, and 206402. It fits the Trimble Mobile Mapper 100, MobileMapper 120, ProMark 100, and ProMark 120 handheld GPS and imaging units used in field surveying and geospatial data collection. Capacity is sourced from product data at 28.86Wh.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMobile Mapper and ProMark platform fit:\u003c\/strong\u003e\n    The Mobile Mapper 100, MobileMapper 120, ProMark 100, and ProMark 120 share the same battery bay geometry, connector pinout, and BMS handshake protocol — one pack covers all four devices without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this pack through the MobileMapper 120 under sustained GPS logging and simultaneous imaging load. The BMS held voltage without dropout and responded correctly to the instrument's charge termination signal.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-field deployment tip:\u003c\/strong\u003e\n    After installing this pack, run a full calibration cycle through the instrument's system menu before heading into the field. The device maps battery state during that process — skipping it causes premature low-battery warnings to fire well before the pack is actually depleted.\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 GPS module initialises at startup\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe Mobile Mapper 100 pulls a sharp current spike the moment its GPS and imaging modules power up together. On a degraded or deeply discharged pack, that spike can trip the BMS overcurrent threshold before the device finishes booting. The instrument then appears to shut off immediately after the splash screen, even though the battery showed a charge. This pack's BMS is rated to handle the combined initialisation draw without tripping — confirmed across repeated cold-start cycles on the bench.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003ePack will not charge after the unit sat unused in a carry case for months\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLi-ion cells self-discharge slowly during storage. If the pack drops below approximately 2.5V per cell, the BMS enters sleep mode and blocks the charge circuit as a protection measure — the charger sees no load and the device shows nothing on screen. Place the battery in the cradle charger and leave it connected for at least 30 minutes without interruption; most BMS circuits recover from sleep and resume normal charging once the charger's trickle current nudges the cell voltage above the 2.8V re-initialisation threshold.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43360737624154,"sku":"BWCS-TMP120SL-1","price":39.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43360737656922,"sku":"BWCS-TMP120SL-2","price":45.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43360737689690,"sku":"BWCS-TMP120SL-3","price":50.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-TMP120SL-1.webp?v=1778616277","url":"https:\/\/batteryweb.com\/products\/trimble-mobile-mapper-100-replacement-battery-37v-7800mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}