{"product_id":"seleco-ak2100-replacement-battery-6v-4200mah-ni-mh","title":"SELECO NP-66 Replacement Battery 6V 4200mAh Ni-MH","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eSELECO AK2100 \/ FA114 Series — 6V Ni-MH Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 6V, 4200mAh Ni-MH replacement battery for Minolta DiMAGE cameras that use the NP-66 battery format. It fits the AK2100, FA114, FA116, FA117, and 11 additional models in the same family. Physical dimensions are 88.95 × 47.55 × 36.50mm — measure your current cell before ordering if you are unsure.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eAK2100 and FA-series compatibility:\u003c\/strong\u003e\n    These models share the same 6V NP-66 voltage rail and connector pinout, so a single cell covers the full lineup. The BMS in each body reads cell voltage the same way — no model-specific firmware variation applies here.\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 DiMAGE-series bodies. The BMS accepted the cell without lockout, and the protection circuit tripped correctly at low-voltage cutoff without requiring a manual reset.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-cycle conditioning for accurate meter reading:\u003c\/strong\u003e\n    Run the first full charge inside the camera body or the OEM charger — not a third-party charger. Some DiMAGE bodies calibrate their battery-remaining display only during a charge cycle completed through the camera itself. Skipping this step causes the indicator to jump erratically from the first shot.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eFlash recycling lag on a fresh Ni-MH cell in DiMAGE bodies\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eNi-MH cells at less than 3–5 cycles do not deliver peak current as consistently as a broken-in cell. The onboard flash capacitor pulls a sharp recharge current between shots, and an unconditioned cell shows a brief voltage sag during that draw. The camera body interprets this sag as low battery and may slow flash recycling or flag a warning. After 3–5 full charge-discharge cycles, internal resistance drops and the sag narrows — flash recycling returns to normal timing.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBattery percentage jumping erratically on the DiMAGE display\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eNi-MH discharge curves are flatter than Li-ion, which makes voltage-based fuel gauging less accurate. The DiMAGE BMS maps voltage thresholds to percentage bands, and a new cell's curve may not align with the camera's lookup table until the cell has been cycled. You may see the indicator drop from 80% to 20% with no warning, then recover slightly. Complete two full charge-discharge cycles and the reading stabilises — the BMS re-maps at approximately 5.4V as the low-end threshold.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43333905186906,"sku":"BWCS-NP66-1","price":50.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43333905219674,"sku":"BWCS-NP66-2","price":58.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43333905252442,"sku":"BWCS-NP66-3","price":64.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-NP66_1.webp?v=1778213590","url":"https:\/\/batteryweb.com\/products\/seleco-ak2100-replacement-battery-6v-4200mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}