{"product_id":"symtech-cva-3ez-replacement-battery-96v-1800mah-ni-mh","title":"Symtech CVA-3EZ Replacement Battery 9.6V 1800mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eSymtech CVA-3EZ \/ HBA-5 Series — 9.6V Ni-MH Replacement Battery (SY05011500)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 9.6V 1800mAh Ni-MH battery for the Symtech CVA-3EZ total station and HBA-5 \/ HBA-5P surveying instruments. It replaces OEM part numbers SY05011500 and SYM05011500. Capacity is rated at 1800mAh (17.28Wh) — matching the original specification.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCVA-3EZ, HBA-5, and HBA-5P fit:\u003c\/strong\u003e\n    These three models share the same 9.6V Ni-MH power rail, connector pinout, and BMS communication protocol — one battery pack covers all three without any modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this pack through cold-start initialisation on the CVA-3EZ. The BMS held stable during sensor power-up surges and sustained measurement logging without triggering a protective cutoff.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-field calibration cycle:\u003c\/strong\u003e\n    After installing a new pack, run a full calibration cycle through the instrument menu before heading into the field. The CVA-3EZ maps battery state during calibration — skip this step and the instrument will throw premature low-battery warnings on the first measurement session, even with a fully charged cell.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCVA-3EZ shutting down mid-measurement with a charged battery\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe CVA-3EZ draws a short high-current spike each time the angle encoder or EDM module initialises a reading cycle. On a degraded or deeply discharged Ni-MH cell, this spike causes voltage to sag below the BMS protection threshold — triggering an immediate shutdown. A new cell at full charge holds enough internal headroom to absorb that spike without dropping out. If shutdowns happen only at the start of a measurement sequence, the spike — not total capacity — is the cause.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eNew pack not recognised by the instrument after sitting unused in carry case\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eNi-MH packs self-discharge during storage. If the pack voltage drops below roughly 8.0V before first use, the instrument's power circuit may not detect a valid battery — it sees a voltage level consistent with a dead or absent cell. The fix is to place the pack on the OEM charger and allow a full charge cycle to complete before inserting it into the instrument. Once the BMS recovers to nominal voltage, the CVA-3EZ will recognise the pack on the next power-on.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43360604618842,"sku":"BWCS-SHB500SL-1","price":41.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43360604651610,"sku":"BWCS-SHB500SL-2","price":48.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43360604684378,"sku":"BWCS-SHB500SL-3","price":53.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-SHB500SL-1.webp?v=1778616005","url":"https:\/\/batteryweb.com\/products\/symtech-cva-3ez-replacement-battery-96v-1800mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}