{"product_id":"rollei-prego-8330-replacement-battery-24v-1800mah-ni-mh","title":"Rollei Prego 8330 Replacement Battery 2.4V 1800mAh Ni-MH","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eRollei Prego 8330 \/ DP8300 \/ DP8330 — 2.4V Ni-MH Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 2.4V, 1800mAh Ni-MH rechargeable cell for the Rollei Prego 8330, DP8300, and DP8330 compact 35mm film cameras. It powers the flash capacitor charge circuit, automatic exposure system, and motorised film advance. Capacity is 1800mAh (4.32Wh), matching the original cell spec.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePrego 8330, DP8300, DP8330 fit:\u003c\/strong\u003e\n    All three models share the same battery bay dimensions and 2.4V supply rail feeding the flash and motor driver board. The connector orientation and cell footprint — 50.00 x 29.80 x 16.50mm — are identical across the run.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through flash-charge and film-advance loads. The Ni-MH chemistry sustained voltage above the 2.0V cutoff through repeated flash recycling without sagging below the motor threshold.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFlash capacitor and Ni-MH discharge behaviour:\u003c\/strong\u003e\n    Ni-MH cells have a flat discharge curve that drops sharply near end of charge. Run one full charge cycle in the OEM charger before shooting — this lets the camera's battery-low circuit calibrate to the actual endpoint voltage of this cell rather than tripping early on an unconditioned curve.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the Prego 8330 flash recycling slows as the cell ages\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe flash capacitor on the Prego 8330 draws a burst of current each recycle cycle. As a Ni-MH cell ages, internal resistance climbs and the capacitor recharge current sags. This extends the time between usable flash shots, even when the battery indicator still shows charge remaining. At that point, voltage under load is typically dropping below 2.1V — the cell needs replacement, not recharging.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCamera battery-low indicator tripping immediately on a new cell\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eA fresh, uncharged Ni-MH cell sitting in storage self-discharges over weeks and can arrive at a resting voltage that the camera reads as depleted. The camera's low-battery circuit compares resting voltage against a fixed threshold, not a discharge curve. If the indicator trips on a new cell right away, charge the cell fully before inserting it. After one complete charge cycle, resting voltage returns to approximately 2.4V and the camera will operate normally.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43333847253082,"sku":"BWCS-KLICA2-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43333847285850,"sku":"BWCS-KLICA2-2","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43333847318618,"sku":"BWCS-KLICA2-3","price":28.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-KLICA2_1.webp?v=1778213291","url":"https:\/\/batteryweb.com\/products\/rollei-prego-8330-replacement-battery-24v-1800mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}