{"product_id":"laird-handy-control-ii-replacement-battery-72v-2000mah-ni-mh","title":"Laird BT923-00072 Crane Remote Replacement Battery 7.2V 2000mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eLaird HANDY Control II \/ III \u0026amp; TC100 — 7.2V Ni-MH Replacement Battery (BT923-00072)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 7.2V, 2000mAh Ni-MH replacement battery for the Laird HANDY Control II, HANDY Control III, and TC100 wireless crane remote control systems. It matches OEM part number BT923-00072. Capacity figure comes directly from product data — 14.4Wh total energy.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eHANDY Control II, III, and TC100 compatibility:\u003c\/strong\u003e\n    All three remotes share the same 7.2V six-cell Ni-MH pack format, the same physical connector, and the same charge management circuit — so one battery revision covers all three units without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this pack through charge-discharge cycles on the BT923-00072 platform. The internal BMS held the cutoff voltage stable across repeated solenoid activation bursts, which draw significant inrush current compared to standard handheld remotes.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eMonthly charge discipline for infrequent crane sites:\u003c\/strong\u003e\n    If the remote sits unused between shutdowns or seasonal work gaps, charge the battery once a month. Ni-MH cells self-discharge at roughly 1–2% per day — a pack left for three months can drop low enough that the remote's charge circuit struggles to recover it.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eSolenoid activation causing power dropout on a freshly installed battery\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eCrane remotes pull a spike of current each time a solenoid or relay fires. On a partially discharged Ni-MH pack, internal resistance rises enough that this inrush drags the terminal voltage below the remote's minimum operating threshold. The unit resets or drops signal mid-operation. A full charge reduces internal resistance and keeps the voltage rail stable through those activation peaks. If dropouts continue on a fully charged pack, the cell stack may have capacity fade — measure resting voltage after a full charge; a healthy 7.2V Ni-MH pack should read 8.4–8.7V at rest.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eRemote shows low-battery indicator immediately after fitting a new pack\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eReplacement Ni-MH batteries ship at storage voltage — typically 6.0–6.5V — not at full charge. The HANDY Control reads this as a low state and flags it on the indicator. This is normal and is not a fault with the battery or the remote. Connect the unit to its charger before first use and run a full charge cycle. The low-battery warning should clear once the pack reaches approximately 7.8V or above.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43360052478042,"sku":"BWCS-CBT071BL-1","price":50.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43360052510810,"sku":"BWCS-CBT071BL-2","price":58.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43360052543578,"sku":"BWCS-CBT071BL-3","price":64.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-CBT071BL-1.webp?v=1778610751","url":"https:\/\/batteryweb.com\/products\/laird-handy-control-ii-replacement-battery-72v-2000mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}