{"product_id":"tektronix-tfs3031-replacement-battery-144v-3000mah-ni-mh","title":"Tektronix TFS3031 LP43SC12S1P Replacement Battery 14.4V","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eTektronix TFS3031 \/ 965 Series — 14.4V Ni-MH Replacement Battery (LP43SC12S1P)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 14.4V 3000mAh Ni-MH battery for the Tektronix TFS3031, 965, and DSP 78-8097-5058-7 field survey instruments. It replaces OEM part numbers LP43SC12S1P and 146-0112-00. The pack restores untethered operation during on-site telecommunications and network testing.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eTFS3031 and 965 platform fit:\u003c\/strong\u003e\n    These models share the same 14.4V power rail, physical form factor, and BMS handshake protocol — one pack covers the full group without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled the pack through the TFS3031's probe initialisation sequence, where inrush current spikes sharply at sensor power-up. The BMS held the rail stable and did not trip into protection mode across repeated cold starts.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eCalibration cycle before first field deployment:\u003c\/strong\u003e\n    After installing this pack, run a full calibration cycle through the instrument menu before heading to site. The TFS3031 maps battery state during calibration — skipping it causes the low-battery warning to trigger prematurely on the 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 during probe module initialisation on the TFS3031\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eWhen the TFS3031 powers up a probe or active sensor module, current draw spikes sharply for 200–400ms before settling to steady-state load. An aged or deeply discharged pack cannot hold the voltage rail through that spike, and the BMS reads it as a fault condition and cuts output. This pack's cells are matched to handle that inrush without triggering protection. If the instrument still shuts down at probe power-up after installing a new battery, confirm the pack is charged above 15.8V before attempting the sequence.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eInstrument not recognising new pack after months in storage\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eNi-MH packs that sit unused for several months self-discharge below the BMS recovery threshold — the protection circuit enters sleep mode and the instrument sees no battery at all. To recover, connect the charger and leave it for a full charge cycle without interrupting; the BMS needs a sustained low-current input to exit sleep mode before normal charging begins. If the charger LED does not respond within 30 minutes, disconnect, wait 5 minutes, then reconnect — this resets the charger handshake. The pack should respond once cell voltage climbs above approximately 10V.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43360765411418,"sku":"BWCS-TFS303SL-1","price":45.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43360765444186,"sku":"BWCS-TFS303SL-2","price":51.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43360765476954,"sku":"BWCS-TFS303SL-3","price":56.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-TFS303SL-1.webp?v=1778616277","url":"https:\/\/batteryweb.com\/products\/tektronix-tfs3031-replacement-battery-144v-3000mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}