{"product_id":"sharp-waterpoof-935sh-replacement-battery-37v-700mah-li-ion","title":"Sharp Waterproof 935SH SHBCC1 Replacement Battery 3.7V 700mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eSharp Waterproof 935SH Series — 3.7V Li-ion Replacement Battery (SHBCC1)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 700mAh Li-ion replacement battery for the Sharp Waterproof 935SH and related models including the 936SH, 934SH, and 933SH. It replaces OEM part numbers SHBCC1, XN-1BT22, and XN-1BT21. Swap it in when the original cell no longer holds a usable charge or causes unexpected shutdowns.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003e935SH series compatibility:\u003c\/strong\u003e\n    The 933SH through 936SH share the same battery bay dimensions, connector pinout, and BMS handshake protocol — all accept the SHBCC1 cell footprint at 3.7V nominal 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 the 935SH platform and confirmed the BMS accepted the cell without fault codes, thermal events, or charge-current limiting at the expected cutoff points.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration on first use:\u003c\/strong\u003e\n    On first installation, disable fast charging and run one full discharge-charge cycle at standard rate. This lets the fuel gauge IC map the new cell's discharge curve before the charge controller applies high-current inputs to 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 Sharp 935SH after a cell swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe 935SH fuel gauge IC retains the discharge curve of the previous cell in its coulomb counter. When a new cell is installed, the IC may trigger a low-voltage shutdown earlier than expected because it is comparing current cell voltage against an old reference curve. This is not a fault in the replacement cell — it is the gauge reading a mismatch between expected and actual cell impedance. One full discharge down to automatic cutoff followed by a complete charge cycle resets the reference and resolves the early shutdown behaviour.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eOS percentage jumping erratically after installation\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eErratic percentage readings — jumping from 45% to 12% or spiking upward mid-use — point to the fuel gauge IC recalibrating against the new cell's voltage-to-capacity curve. The coulomb counter has not yet built an accurate state-of-charge model for the replacement cell. Do not interrupt the first charge cycle. Let the phone charge to 100%, confirm it shows the full-charge indicator, then discharge naturally to cutoff. After that single uninterrupted cycle, percentage reporting stabilises.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43405117653082,"sku":"BWCS-SX935SL-1","price":22.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43405117685850,"sku":"BWCS-SX935SL-2","price":25.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43405117718618,"sku":"BWCS-SX935SL-3","price":27.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-SX935SL-1.webp?v=1779370243","url":"https:\/\/batteryweb.com\/products\/sharp-waterpoof-935sh-replacement-battery-37v-700mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}