{"product_id":"sportdog-houndhunter-sd-1800-replacement-battery-72v-300mah-ni-mh","title":"SportDog DC-24 Houndhunter SD-1800 Replacement Battery 7.2V","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eSportDog SD-1800 \/ SD-1850 \/ SD-2000 Series — 7.2V Ni-MH Replacement Battery (DC-24)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 7.2V, 300mAh Ni-MH replacement battery for the SportDog Houndhunter SD-1800 and related training collar models. It replaces OEM part DC-24 (also listed as MH330AAAK6HC, 650-060, and BP1061). Fit models include the Uplandhunter SD-1850, Wetlandhunter SD-2000, and Wetlandhunter ST101-W.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSD-1800 \/ SD-1850 \/ SD-2000 platform fit:\u003c\/strong\u003e\n    These collars share the same 7.2V Ni-MH cell pack format, connector pinout, and BMS charge curve. One battery SKU covers the full lineup — the pack dimensions (29.71 × 31.00 × 20.76mm) lock it into the same housing cavity across all listed receivers.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this pack through the SD-1800 receiver's charge circuit and confirmed the BMS accepted charge at the expected trickle-then-full rate. Stimulation and tone outputs triggered normally at full charge and down to low-battery threshold.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst charge after installation:\u003c\/strong\u003e\n    Ni-MH packs that have been stored at low state-of-charge can show reduced capacity on the first cycle. Run a full charge before field use — the collar's charge indicator should go solid before you head out. Capacity stabilises after 2–3 full cycles.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the SD-1800 collar shows low battery immediately after a new pack is installed\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eNi-MH cells self-discharge during storage, and a battery sitting in a warehouse for several months may arrive at 30–50% state-of-charge. The SD-1800's onboard voltage monitor reads the resting voltage directly — if the pack hasn't been charged, the collar reports low battery even though the battery is new. This is not a fault with the pack or the collar. Put the collar on the charger for a full cycle before testing stimulation output. Resting voltage on a fully charged 7.2V Ni-MH pack should read between 7.2V and 7.6V.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCollar not responding to the handheld transmitter after battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eRemoving power from the SD-1800 receiver clears its active link state with the handheld transmitter. The collar does not automatically re-establish the RF link on power-up — it waits for a pairing handshake. After installing the new battery, power the collar on, then follow the transmitter-to-receiver pairing sequence in the SD-1800 manual (hold the transmitter's on\/off button until the collar beeps twice). If pairing fails on the first attempt, confirm the collar is showing a solid power LED before retrying — a flashing LED means the battery voltage is still below the collar's operating threshold.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43360186073178,"sku":"BWCS-SDC24SL-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43360186105946,"sku":"BWCS-SDC24SL-2","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43360186138714,"sku":"BWCS-SDC24SL-3","price":29.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-SDC24SL-1.webp?v=1778610959","url":"https:\/\/batteryweb.com\/products\/sportdog-houndhunter-sd-1800-replacement-battery-72v-300mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}