{"product_id":"anritsu-s113c-replacement-battery-108v-2100mah-ni-mh","title":"Anritsu S113C Replacement Battery 10.8V 2100mAh Ni-MH","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eAnritsu S113C \/ S114C Series — 10.8V Ni-MH Replacement Battery (633-27)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 10.8V, 2100mAh Ni-MH replacement battery for the Anritsu S113C, S114B, S114C, S251B, and over 30 additional Anritsu handheld network analyzers using OEM part number 633-27. These instruments are used in field telecommunications testing and medical device verification, where AC power is not available. Voltage and cell count match the original pack exactly.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eS113C \/ S114C \/ S251B platform compatibility:\u003c\/strong\u003e\n    These models share the same 10.8V battery rail, physical connector, and BMS handshake protocol. The 633-27 footprint and cell configuration are common across this instrument family, so one replacement 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 charge and discharge on the S113C platform. The BMS accepted the pack on first insertion, completed its initialisation handshake, and held voltage within spec across a full discharge cycle. No communication fault was triggered.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePower-on self-test after swap:\u003c\/strong\u003e\n    After installing this battery, let the instrument complete its full boot and self-test sequence without interruption. Anritsu network analyzers run a BMS verification pass at startup — cutting power during this window logs a false battery fault that will persist until the next complete reboot.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eDevice not completing boot sequence after battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe S113C and related analyzers run a multi-stage power-on sequence that includes an internal BMS learn check. A replacement Ni-MH cell that has not yet completed one full charge-discharge cycle may read as below the BMS acceptance threshold during this check, causing the boot to halt or loop. This is not a fault with the battery — it is the instrument applying a conservative voltage floor set for the OEM cell's known state. Charge the replacement pack fully, then power on and allow the self-test to run to completion without interruption. After one full cycle, the BMS updates its reference and the issue clears.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCharge indicator not reaching 100% on the first charge\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eOn the first charge, the S113C's charge IC applies a conservative current limit when it detects a cell with no charge history. This causes the indicator to plateau below 100% and stop, even though the cell is still accepting charge. The charge IC is reading internal resistance as higher than the OEM baseline and throttling early. Run one full charge-discharge cycle, then recharge — the charge IC recalibrates its resistance model and the indicator will reach full on the second charge. Do not use the instrument for critical measurements until that second full charge is complete.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43381504835674,"sku":"BWCS-AMS113MD-1","price":121.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43381504868442,"sku":"BWCS-AMS113MD-2","price":143.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43381504901210,"sku":"BWCS-AMS113MD-3","price":159.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-AMS113MD-1.webp?v=1778901324","url":"https:\/\/batteryweb.com\/products\/anritsu-s113c-replacement-battery-108v-2100mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}