{"product_id":"proxibus-ldp400-replacement-battery-36v-1800mah-ni-mh","title":"Proxibus LDP400 Replacement Battery 3.6V 1800mAh Ni-MH","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eProxibus LDP400 \/ Monetel EFT Series — 3.6V Ni-MH Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.6V Ni-MH battery at 1800mAh (6.48Wh) replaces the original cell in the Proxibus LDP400 payment terminal and compatible Monetel CDK PP1100, EFT10P, and EFT20P units. These are portable point-of-sale terminals used in retail and hospitality environments. When the original cell degrades, this replacement restores cordless operation without swapping the full terminal.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCross-terminal compatibility:\u003c\/strong\u003e\n    The LDP400 and Monetel EFT\/CDK units share the same battery bay geometry, voltage rail, and connector pinout. The BMS on each terminal accepts the same 3.6V Ni-MH cell chemistry, so one part number covers the full group.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through a full boot-charge cycle on the LDP400 platform. The BMS accepted the cell on first insertion, completed the PCI boot handshake, and the charge IC entered top-off mode as expected on a fresh Ni-MH cell.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst transaction cycle after installation:\u003c\/strong\u003e\n    After fitting this battery, run at least one complete transaction — card read through receipt print — before deploying in a live environment. The terminal maps battery capacity during normal use and needs one full power cycle to calibrate the charge indicator correctly.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eReceipt printer causing voltage sag on the LDP400 battery\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe thermal printer inside the LDP400 pulls a sharp current spike at the moment it fires. On a degraded original cell, internal resistance is high enough that this spike drops the voltage below the BMS low-voltage threshold. The terminal then cuts power to protect the cell — mid-print, mid-transaction. A fresh 1800mAh Ni-MH cell has lower internal resistance and handles that spike without tripping the cutoff. If the terminal was cutting out only during receipt printing, this is the cause.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTerminal not powering on after sitting unused in a drawer\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eNi-MH cells self-discharge at roughly 1–2% per day at room temperature. After several weeks unused, the original cell can drop below the BMS recovery threshold — typically around 3.0V for a 3.6V pack — and the terminal will not boot. If the old battery is at fault, fitting this replacement and connecting to the charger for 15–20 minutes before powering on allows the charge IC to bring the cell above the minimum recovery voltage. Target at least 3.4V on the cell before attempting a cold boot.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415941972058,"sku":"BWCS-SET100BL-1","price":28.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43415942004826,"sku":"BWCS-SET100BL-2","price":33.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43415942037594,"sku":"BWCS-SET100BL-3","price":36.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-SET100BL-1.webp?v=1779758202","url":"https:\/\/batteryweb.com\/products\/proxibus-ldp400-replacement-battery-36v-1800mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}