{"product_id":"gsmart-rio-r1-replacement-battery-37v-1500mah-li-ion","title":"GSmart Rio R1 SRB-01 Replacement Battery 3.7V 1500mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eGSmart Rio R1 — 3.7V Li-ion Replacement Battery (SRB-01)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 1500mAh Li-ion battery for the GSmart Rio R1 smartphone. It replaces part number SRB-01 and fits the Rio R1 handset directly. Capacity is rated at 5.55Wh, matching the original cell specification.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eRio R1 platform fit:\u003c\/strong\u003e\n    The Rio R1 uses a single-cell 3.7V Li-ion pack with a low-profile 4.90mm thickness. The connector pinout and BMS handshake match the original charge IC on the Rio R1 mainboard, so the phone recognises the cell and initiates charging normally.\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 Rio R1 platform. The BMS responded correctly at both low-voltage cutoff and full-charge termination, with no false protection trips during the modem-active draw phase.\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 for one complete discharge-charge cycle. This lets the fuel gauge IC map the new cell's discharge curve before high-current charging pushes current into an uncalibrated cell — preventing erratic percentage readings early on.\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 Rio R1 after a cell swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the fuel gauge IC is still calibrated to the old cell's discharge curve. The new cell hits a voltage cliff under combined modem and display load before the gauge reaches zero. The phone interprets the voltage drop as a hard fault and shuts down immediately. One full discharge-charge cycle without fast charging resets the coulomb counter and resolves the problem.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eRio R1 won't power on after sitting in storage with a flat battery\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eIf the cell voltage has dropped below approximately 2.5V, the BMS enters a lockout state and blocks normal charging to protect the cell. Plugging into a standard charger at this point produces no response from the phone. Connect the Rio R1 to a low-current USB source — a PC port rather than a wall adapter — and leave it for 20–30 minutes to allow trickle recovery current to bring the cell above the BMS re-enable threshold. Once the screen shows a charging indicator, switch to a normal charger to complete the charge.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43404296978522,"sku":"BWCS-GSR100SL-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43404297011290,"sku":"BWCS-GSR100SL-2","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43404297044058,"sku":"BWCS-GSR100SL-3","price":28.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-GSR100SL-1.webp?v=1779369643","url":"https:\/\/batteryweb.com\/products\/gsmart-rio-r1-replacement-battery-37v-1500mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}