{"product_id":"megger-tdr2000-c-replacement-battery-96v-2000mah-ni-mh","title":"Megger AB2584 TDR2000-C Replacement Battery 9.6V 2000mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eMegger TDR2000-C — 9.6V Ni-MH Replacement Battery (AB2584 GP)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 9.6V 2000mAh Ni-MH replacement battery for the Megger TDR2000-C and TDR2000\/2P Time Domain Reflectometer. The TDR2000-C is a professional cable fault locator used in telecoms and electrical survey work. It sends electromagnetic pulses down a cable and maps reflections to pinpoint faults — a task that demands consistent voltage throughout the session.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eTDR2000-C and TDR2000\/2P fit:\u003c\/strong\u003e\n    Both instruments share the same battery bay format, connector pinout, and 9.6V operating rail. The BMS handshake on each unit reads cell count and voltage threshold identically, so a single pack covers both 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 TDR2000-C's pulse-transmit and receive sequence under sustained load. The BMS maintained rail voltage above the instrument's cutoff threshold across repeated measurement cycles without tripping.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-install calibration cycle:\u003c\/strong\u003e\n    After fitting this battery, run a full calibration cycle through the TDR2000-C instrument menu before heading into the field. The instrument maps battery state during calibration — skip this step and the first measurement session will throw premature low-battery warnings that interrupt readings.\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 TDR2000-C sat unused in a carry case for months\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eNi-MH packs self-discharge at roughly 1–2% per day. After several months in a case, cell voltage drops below the BMS recovery threshold, and the pack enters a protective lockout state. The instrument may show no charge activity even when connected to a working charger. To recover the pack, apply a slow trickle charge at 0.1C (200mA) for two to four hours before attempting a normal charge cycle — this brings cell voltage back above the 1.0V-per-cell floor the BMS requires to re-initialise.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTDR2000-C shuts down mid-measurement with no prior low-battery warning\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the pulse transmit circuit draws a brief high-current spike that pulls rail voltage below the BMS cutoff threshold — even if the battery indicator looked healthy seconds before. An aged or partially degraded cell has higher internal resistance, so the voltage sag under that spike is steeper than a fresh pack. This is not a firmware fault. Replace the battery and confirm resting voltage reads at least 10.2V (1.275V per cell) before the next session.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43360492126298,"sku":"BWCS-MIT200SL-1","price":39.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43360492159066,"sku":"BWCS-MIT200SL-2","price":46.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43360492191834,"sku":"BWCS-MIT200SL-3","price":51.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-MIT200SL-1.webp?v=1778615883","url":"https:\/\/batteryweb.com\/products\/megger-tdr2000-c-replacement-battery-96v-2000mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}