{"product_id":"sharp-940sh-replacement-battery-37v-750mah-li-ion","title":"Sharp 940SH SHBCR1 Compatible Battery 3.7V 750mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eSharp 940SH \/ 942SH Series — 3.7V Li-ion Replacement Battery (SHBCR1)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 750mAh Li-ion replacement battery for the Sharp 940SH smartphone. It also fits the DM005SH, 942SH, and 942SHKT. The SHBCR1 form factor is a compact 38.18 × 37.21 × 5.30mm cell that slots directly into the original battery bay.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003e940SH \/ 942SH platform compatibility:\u003c\/strong\u003e\n    These models share the same battery cavity dimensions, connector pinout, and BMS handshake protocol. One cell replacement covers all four listed variants without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through charge and discharge on a controlled rig, confirming the BMS communicates correctly with the charge IC and that protection cutoffs trigger at expected voltage thresholds — no false trips at load.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration on first cycle:\u003c\/strong\u003e\n    On first use after installation, disable fast charging and run one full discharge-charge cycle at standard rate. This gives the fuel gauge IC time to map the new cell's discharge curve before high-current charging pushes current into an uncalibrated state.\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 Sharp 940SH after a cell swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens because the fuel gauge IC still holds the discharge curve from the old, degraded cell. The new cell hits a voltage cliff under modem or display load that the IC doesn't anticipate. The phone's protection circuit reads the voltage drop as 0% and shuts down — even though the reported percentage was higher. One full discharge-to-cutoff and recharge cycle at standard rate lets the coulomb counter recalibrate against the actual cell characteristics, and the shutdowns stop.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003ePhone won't power on after the SHBCR1 sat in storage before installation\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLi-ion cells self-discharge in storage. If the cell drops below approximately 2.5V, the BMS enters lockout mode to prevent damage — and the phone shows nothing when you press the power button. Connect the phone to a wall charger, not a PC USB port, and leave it for 15–20 minutes before attempting to power on. The charge IC needs to deliver a trickle pre-charge above the BMS re-enable threshold, typically around 2.9V per cell, before normal charging resumes.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43405127188570,"sku":"BWCS-SX940SL-1","price":22.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43405127221338,"sku":"BWCS-SX940SL-2","price":25.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43405127254106,"sku":"BWCS-SX940SL-3","price":27.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-SX940SL-1.webp?v=1779370244","url":"https:\/\/batteryweb.com\/products\/sharp-940sh-replacement-battery-37v-750mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}