{"product_id":"fisher-impulse-aq-nimh-rechargeable-battery-pack","title":"Fisher Impulse AQ NiMH Rechargeable Battery Pack (PI-BATPK-NIMH)","description":"\u003cdiv class=\"product-description\"\u003e\n\u003cp\u003e\u003cstrong\u003eAn Impulse AQ runs about three and a half hours on a charge, and a good low tide lasts longer than that.\u003c\/strong\u003e This is Fisher's own Impulse AQ battery pack, the replacement battery for the AQ, part PI-BATPK-NIMH: a custom 12-cell nickel-metal hydride battery rated at 2200 mAh, the same pack that ships inside the AQ configuration we sell (SKU IMPULSE-AQ-NMH, where NMH is First Texas shorthand for this NiMH battery). Keep one charged in the truck and the second half of the tide is yours.\u003c\/p\u003e\n\n\u003ch3\u003eAt a glance\u003c\/h3\u003e\n\u003cp\u003eThe Fisher Impulse AQ NiMH Rechargeable Battery Pack (part PI-BATPK-NIMH) is the original-equipment 12-cell nickel-metal hydride power pack for the Fisher Impulse AQ pulse induction metal detector. 2200 mAh capacity, approximately 3.5 hours of operating time depending on settings and conditions. Sold as a replacement or spare. Battery pack only; the Fisher NiMH charger is a separate part.\u003c\/p\u003e\n\n\u003ch3\u003eWhy the Fisher pack and not a rebuild\u003c\/h3\u003e\n\u003cp\u003eOwner forums are full of threads about rewiring the AQ for other cells, which tells you two things: the AQ's pulse induction circuit is hungry, and its battery is not a hardware-store part. The pack is a closed 12-cell NiMH cylinder with Fisher's two keyed, gasketed connectors on the end cap (one for the detector lead, one for the charger), built to sit in the AQ's battery cradle and survive wet salt sand. First Texas publishes the two numbers that matter, 2200 mAh and about 3.5 hours, and we repeat exactly those. Of the three dealers we checked, one pastes the detector's marketing blurb into the battery page, one gives you a single repeated sentence, and only one explains that the charger is sold separately. All three charge the same manufacturer-set price, so the difference is whether the page tells you the truth about what arrives in the box.\u003c\/p\u003e\n\n\u003ch3\u003eWhat is verified, spec by spec\u003c\/h3\u003e\n\u003ctable border=\"1\" cellpadding=\"8\" cellspacing=\"0\" style=\"border-collapse:collapse;width:100%;font-size:13px;margin:18px 0;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:42%;\"\u003e\u003cstrong\u003eFits\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFisher Impulse AQ (NiMH configuration, SKU IMPULSE-AQ-NMH); listed by First Texas for the Impulse AQ only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eChemistry\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNickel-metal hydride (NiMH), custom 12-cell pack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCapacity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2200 mAh\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRun time\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eApproximately 3.5 hours per charge (First Texas figure; varies with settings and conditions)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRole\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOriginal-equipment replacement or spare pack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eConnectors\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTwo gasketed, keyed circular connectors on the end cap\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCharger\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNot included; Fisher Impulse AQ NiMH charger sold separately\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShipping weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.0 lb (454 g), manufacturer listing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePI-BATPK-NIMH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eTwo batteries, one tide\u003c\/h3\u003e\n\u003cp\u003eA spare battery is the cheapest way to double an AQ session. Charge both, hunt the first through the falling tide, swap at the bottom, and hunt the rise. If your original pack has aged to the point that it no longer holds its rated run time, this is the manufacturer-specified replacement rather than a workaround. It pairs with the \u003ca href=\"\/products\/fisher-impulse-aq-metal-detector\"\u003eFisher Impulse AQ\u003c\/a\u003e and the \u003ca href=\"\/products\/fisher-8-inch-pi-coil-tube-impulse-aq\"\u003e8 in (20 cm) open PI coil\u003c\/a\u003e we also carry; Fisher's wired waterproof headphones (HP-DIVE1) complete the beach kit.\u003c\/p\u003e\n\n\u003ch3\u003eWhat is included\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003eOne Fisher Impulse AQ NiMH rechargeable battery pack, part PI-BATPK-NIMH\u003c\/li\u003e\u003c\/ul\u003e\n\u003cp\u003eBattery pack only. The detector, charger, power cable, coil and headphones are separate items.\u003c\/p\u003e\n\n\u003ch3\u003eWhat we do not promise\u003c\/h3\u003e\n\u003cp\u003eFirst Texas does not publish a separate coverage period for this part on its product page, so we print none. First Texas also sells lithium-ion packs for the Impulse AQ; those belong to a different battery system and are not interchangeable with this NiMH pack. If you are not sure which configuration your AQ is, call (256) 284-2247 with your serial number before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eWho you are buying from\u003c\/h3\u003e\n\u003cp\u003eHistory Seekers is an authorized Fisher dealer and a working detecting channel: over 1.1 million people follow our hunts on \u003ca href=\"https:\/\/www.facebook.com\/hseekers\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eFacebook\u003c\/a\u003e and \u003ca href=\"https:\/\/www.youtube.com\/@HistorySeekers\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eYouTube\u003c\/a\u003e. We hunt salt beaches with the gear we sell, and the person who answers the phone has sand in the truck. The story is more important than the artifact.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\n\u003ch3\u003eWhich Fisher Impulse AQ does this battery fit?\u003c\/h3\u003e\n\u003cp\u003eThe NiMH configuration of the Impulse AQ, SKU IMPULSE-AQ-NMH, which is the AQ History Seekers sells. First Texas lists the PI-BATPK-NIMH for the Impulse AQ only; it is not listed for any other Fisher detector.\u003c\/p\u003e\n\u003ch3\u003eIs this the lithium-ion battery?\u003c\/h3\u003e\n\u003cp\u003eNo. This is the 12-cell nickel-metal hydride (NiMH) pack, 2200 mAh. First Texas sells lithium-ion packs for the Impulse AQ as a separate battery system; they are different products and not interchangeable with this pack.\u003c\/p\u003e\n\u003ch3\u003eHow long does the Impulse AQ run on this battery?\u003c\/h3\u003e\n\u003cp\u003eFirst Texas rates it at approximately 3.5 hours of operating time per charge. Actual time depends on detector settings, battery age and conditions.\u003c\/p\u003e\n\u003ch3\u003eIs the charger included?\u003c\/h3\u003e\n\u003cp\u003eNo. This is the battery pack only. The Fisher Impulse AQ NiMH charger is a separate First Texas part, and your AQ shipped with one.\u003c\/p\u003e\n\u003ch3\u003eShould I buy a spare even if my original still works?\u003c\/h3\u003e\n\u003cp\u003eIf you hunt full tides, yes. A charged spare swapped at low water is the only way to get a six to seven hour session from an AQ, since a pack cannot be recharged on the beach.\u003c\/p\u003e\n\u003ch3\u003eWhere can I buy a genuine Fisher Impulse AQ battery?\u003c\/h3\u003e\n\u003cp\u003eFrom an authorized Fisher dealer such as History Seekers. Every authorized dealer sells it at the same manufacturer-set price; order online or call (256) 284-2247.\u003c\/p\u003e\n\u003c\/div\u003e\n","brand":"Fisher","offers":[{"title":"Default Title","offer_id":50871213981954,"sku":"PI-BATPK-NIMH","price":199.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0642\/9012\/8130\/files\/fisher-impulse-aq-nimh-rechargeable-battery-pack-pi-batpk-nimh.jpg?v=1792992251","url":"https:\/\/historyseekers.net\/products\/fisher-impulse-aq-nimh-rechargeable-battery-pack","provider":"History Seekers Metal Detectors","version":"1.0","type":"link"}