{"product_id":"3m-dynatel-950adsl-replacement-battery-48v-2000mah-ni-mh","title":"3M Dynatel 950ADSL Replacement Battery 4.8V 2000mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003e3M Dynatel 950ADSL — 4.8V Ni-MH Replacement Battery (BBM-950ADSL)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 4.8V 2000mAh Ni-MH battery for the 3M Dynatel 950ADSL cable and pipe locator. It replaces OEM part numbers BBM-950ADSL and 78-8130-7658-1. The 950ADSL is a handheld field instrument used to locate buried utilities — electrical lines, telecoms cables, and water pipes — during excavation and utility maintenance work.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eDynatel 950ADSL and 950ADSL Meter compatibility:\u003c\/strong\u003e\n    Both variants use the same 4.8V cell configuration, connector pinout, and BMS handshake. A single pack covers either unit 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 950ADSL's signal transmit and receive modes. The BMS held voltage steady through active locate cycles, and the low-battery interrupt triggered at the correct threshold without false cutoffs.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-use calibration on the 950ADSL:\u003c\/strong\u003e\n    After fitting this pack, run a full calibration cycle through the instrument menu before heading into the field. The 950ADSL maps battery state during calibration — skipping this step causes premature low-battery warnings during your first locate 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 lockout after the 950ADSL sat unused in a carry case for months\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eNi-MH cells self-discharge even when the instrument is off. After extended storage, cell voltage can drop below the BMS recovery threshold, which puts the pack in a locked state the charger won't break. The 950ADSL's internal charger circuit expects cells above approximately 0.9V per cell to begin a charge cycle. A pack sitting at or below that threshold will appear dead on the charger with no indication LED response.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eDynatel 950ADSL shuts down mid-locate when the transmitter fires\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe 950ADSL's signal transmitter draws a sharp current spike when it keys — this is the most common cause of unexpected shutdowns in the field, even when the battery indicator shows charge remaining. An aged or partially discharged cell pack can't sustain the voltage under that brief load, and the BMS interprets the sag as an undervoltage fault and cuts output. The fix is to ensure the pack is fully charged before a locate session — Ni-MH packs with partial charge have significantly less headroom under pulse load. If shutdowns persist with a fresh pack, check that the instrument's battery contacts are clean and making full contact.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43360736837722,"sku":"BWCS-DNT950SL-1","price":30.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43360736870490,"sku":"BWCS-DNT950SL-2","price":35.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43360736903258,"sku":"BWCS-DNT950SL-3","price":38.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-DNT950SL-1.webp?v=1778616209","url":"https:\/\/batteryweb.com\/products\/3m-dynatel-950adsl-replacement-battery-48v-2000mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}