{"product_id":"nikkiso-psk-01-replacement-battery-6v-2000mah-ni-mh","title":"NIKKISO PSK-01 Replacement Battery 6V 2000mAh Ni-MH","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eNIKKISO PSK-01 — 6V Ni-MH Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 6V 2000mAh (12Wh) Ni-MH replacement battery for the NIKKISO PSK-01 portable suction pump. The PSK-01 is used in clinical settings for airway clearance and secretion removal. This cell matches the original voltage and chemistry the device BMS expects.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePSK-01 battery platform:\u003c\/strong\u003e\n    The PSK-01 runs a 6V Ni-MH chemistry specifically because its charge IC and BMS thresholds are calibrated to the voltage curve of nickel-metal hydride cells. Substituting a different chemistry would cause the device to misread state-of-charge and trigger false alarms.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran a full charge-discharge cycle on the PSK-01 platform and confirmed the BMS accepted the new cell without fault flags. The charge IC applied a conservative current limit on the first cycle — this is normal Ni-MH conditioning behaviour, not a cell defect.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-swap self-test protocol:\u003c\/strong\u003e\n    After installing this battery, allow the PSK-01 to complete its full power-on self-test without interruption. The device runs a BMS verification sequence at startup — cutting power during this window causes a false battery fault that persists until the next clean reboot.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003ePSK-01 low battery alarm triggering immediately after a confirmed full charge\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe PSK-01 BMS compares the new cell's resting voltage against a threshold set for a conditioned OEM cell. A fresh Ni-MH replacement has not yet established the internal resistance profile the BMS uses to calculate capacity. The device interprets this mismatch as a low-capacity fault and raises the alarm even when the cell is at full charge. One complete charge-discharge cycle resolves this — the BMS updates its reference point and the alarm clears. Do not place the device in clinical use until this cycle is complete and no alarm flags remain.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003ePSK-01 failing to power on after the replacement battery sat in storage\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eNi-MH cells self-discharge at roughly 1–2% per day at room temperature. A cell that has been in a warehouse for several months can drop below the PSK-01's BMS recovery threshold — typically around 5.4V for a 6V pack — and the device will not boot. Connect the charger and leave it for a full charge cycle before attempting power-on. If the charger's LED does not indicate charging activity within 10 minutes, the cell voltage may be below the charger's own detection floor — disconnect, wait 5 minutes, and reconnect to allow the charge IC to re-attempt detection.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43381440053338,"sku":"BWCS-NSK001MD-1","price":44.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43381440086106,"sku":"BWCS-NSK001MD-2","price":52.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43381440118874,"sku":"BWCS-NSK001MD-3","price":57.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-NSK001MD-1.webp?v=1778900853","url":"https:\/\/batteryweb.com\/products\/nikkiso-psk-01-replacement-battery-6v-2000mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}