{"product_id":"seik-terra-fa5-10-replacement-battery-72v-1200mah-ni-mh","title":"Seik Terra FA5-10 7.2V Ni-MH Crane Remote Replacement Battery","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eSeik Terra FA5-10 — 7.2V Ni-MH Replacement Battery (709053557)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 7.2V 1200mAh Ni-MH replacement battery for the Seik Terra FA5-10 crane remote control. It fits the wireless handheld transmitter used to operate overhead cranes and hoists in industrial environments. OEM part number 709053557 confirms the correct fit.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eTerra FA5-10 transmitter compatibility:\u003c\/strong\u003e\n    The FA5-10 remote uses a dedicated battery compartment sized for the 709053557 cell pack. Voltage must match exactly — crane remote receivers validate transmitter signal strength against battery output, and an undersized voltage source causes intermittent dropout during solenoid activation.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell pack through repeated solenoid-trigger sequences and monitored voltage under the inrush load. The BMS held stable across the test sequence with no undervoltage cutoff events at full charge.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eMonthly charge during idle periods:\u003c\/strong\u003e\n    Crane remotes often sit unused for weeks between job phases. Ni-MH cells self-discharge at roughly 1–2% per day. If the pack drops below the minimum threshold, the remote may appear dead on next use — a full charge before any idle period prevents this.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eSolenoid activation causing power dropout on the FA5-10 remote\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eWhen the FA5-10 transmitter sends a lift or travel command, the receiver triggers a solenoid or contactor that draws a short inrush current spike. A degraded or low-charge battery can sag below the transmitter's operating voltage at that exact moment, causing the remote to cut out mid-command. This is not a fault with the remote itself — it is a voltage delivery problem. A fresh, fully charged 1200mAh Ni-MH pack maintains enough headroom to absorb the inrush without dropping below 6.0V under load.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTerra FA5-10 remote showing low-battery indicator immediately after new battery install\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eNi-MH cells ship at storage voltage, typically 1.1–1.2V per cell, which puts a six-cell 7.2V pack at roughly 6.6–7.2V open-circuit. The FA5-10 firmware interprets anything below its charged threshold as a low-battery condition. This is not a faulty cell — it is the expected storage state. Connect the pack to the appropriate charger and bring it to a full charge before first use; the low-battery indicator will clear once the cells reach operating voltage.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43360049135706,"sku":"BWCS-SFA510BL-1","price":34.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43360049168474,"sku":"BWCS-SFA510BL-2","price":39.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43360049201242,"sku":"BWCS-SFA510BL-3","price":43.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-SFA510BL-1.webp?v=1778610729","url":"https:\/\/batteryweb.com\/products\/seik-terra-fa5-10-replacement-battery-72v-1200mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}