{"product_id":"e-plus-pocket-pda-replacement-battery-37v-2350mah-li-ion","title":"E-Plus Pocket PDA Replacement Battery WIZA16 3.7V 2350mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eE-Plus Pocket PDA — 3.7V Li-ion Replacement Battery (WIZA16)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 2350mAh (8.7Wh) Li-ion replacement battery for the E-Plus Pocket PDA. It slots in when the original cell has degraded past usable capacity or failed outright. Voltage and connector match the OEM spec — WIZA16 part number confirmed.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePocket PDA platform fit:\u003c\/strong\u003e\n    The WIZA16 cell uses a fixed 3.7V nominal rail and a connector pinout specific to the Pocket PDA chassis. No adapter or wiring change is needed — the BMS communication lines align with the device's charge controller as the OEM cell does.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through charge and discharge cycles on the Pocket PDA platform. The BMS handed off correctly to the device charge IC, and protection cutoffs triggered at expected thresholds — no false trips during screen-on load.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration on first use:\u003c\/strong\u003e\n    On first use after installation, disable fast charging for one complete discharge-charge cycle. This lets the fuel gauge IC recalibrate against the new cell's discharge curve before high-current charging pushes current into an uncalibrated cell.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eSudden shutdown at 20–30% on the Pocket PDA after a cell swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens because the fuel gauge IC was calibrated to the old cell's discharge curve. When voltage drops under modem or display load, the new cell hits a voltage cliff the gauge didn't predict — the device reads 25% but the cell is already below the cutoff threshold. The fix is one full uninterrupted discharge down to automatic shutdown, followed by a full charge without interruption. After that cycle, the coulomb counter has a real baseline for the new cell and percentage readings stabilise.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eDevice won't power on after sitting in storage — BMS lockout\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLi-ion cells self-discharge in storage. If the Pocket PDA sat unused long enough, the cell may have dropped below 2.5V — the threshold where the BMS locks out to prevent damage from deep discharge. The device will not respond to a normal power-on attempt. Connect the charger and leave it for 20–30 minutes without pressing anything — the charge IC will trickle current into the cell until the BMS re-initialises, typically above 2.8V per cell, at which point normal charging resumes.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43405259669594,"sku":"BWCS-WIZA16XL-1","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43405259702362,"sku":"BWCS-WIZA16XL-2","price":30.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43405259735130,"sku":"BWCS-WIZA16XL-3","price":32.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-WIZA16XL-1.webp?v=1779370368","url":"https:\/\/batteryweb.com\/products\/e-plus-pocket-pda-replacement-battery-37v-2350mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}