{"product_id":"megger-tdr20002r-echometer-replacement-battery-96v-2000mah-ni-mh","title":"Megger TDR2000-C 9.6V Ni-MH Compatible Battery 2000mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eMegger TDR2000\/2R Echometer — 9.6V Ni-MH Replacement Battery (TDR2000-C)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 9.6V Ni-MH 2000mAh (19.2Wh) replacement battery for the Megger TDR2000\/2R echometer. It fits the TDR2000\/2R time-domain reflectometer used for locating faults, breaks, and impedance mismatches in buried cables and overhead lines. Direct swap for the OEM TDR2000-C pack.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eTDR2000\/2R platform fit:\u003c\/strong\u003e\n    The TDR2000\/2R uses a 9.6V eight-cell Ni-MH pack with a specific connector orientation and BMS handshake that governs low-voltage cutoff during pulse transmission. This replacement matches that cell count, voltage rail, and connector so the instrument's power management circuitry reads the pack correctly.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this pack through TDR pulse sequences and monitored BMS response at the discharge cutoff threshold. The pack sustained the instrument's transmit-pulse load without triggering premature cutoff, and the BMS cleared correctly on recharge.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-install calibration on the TDR2000\/2R:\u003c\/strong\u003e\n    After fitting this battery, run a full calibration cycle through the instrument menu before field deployment. The TDR2000\/2R maps battery state during calibration — skipping this step causes premature low-battery warnings during 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\"\u003eTDR2000\/2R shutting down mid-pulse during cable fault location\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe TDR2000\/2R generates a high-voltage pulse to send down the cable under test. That pulse draw is brief but sharp — it can spike current draw beyond what an aged or partially discharged Ni-MH pack can deliver cleanly. When the BMS sees voltage sag cross its cutoff threshold during that spike, it shuts the instrument down immediately. A fresh, fully charged pack eliminates the sag. If shutdowns persist after fitting a new pack, confirm the battery has completed a full charge cycle before field use — Ni-MH cells do not reach rated voltage after a partial charge.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003ePack will not charge after the instrument sat unused in a carry case for months\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eNi-MH cells self-discharge over storage — if the TDR2000\/2R sat unused long enough, the pack voltage can drop below the charger's detection threshold and the charger will not initiate a charge cycle. This is a BMS sleep state, not a dead pack. Connect the battery to the charger and leave it for 30–60 minutes; many chargers apply a trickle voltage that recovers the pack above the detection floor. If the charger still shows no activity, check that the pack voltage measures above 7.2V with a multimeter — below that, a dedicated Ni-MH recovery charger with a force-charge mode is required.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43360701349978,"sku":"BWCS-MDR200SL-1","price":39.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43360701382746,"sku":"BWCS-MDR200SL-2","price":46.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43360701415514,"sku":"BWCS-MDR200SL-3","price":51.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-MDR200SL-1.webp?v=1778616162","url":"https:\/\/batteryweb.com\/products\/megger-tdr20002r-echometer-replacement-battery-96v-2000mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}