{"product_id":"hughes-replacement-battery-111v-6600mah-li-ion","title":"Hughes 3500065-001 Satellite Phone Replacement Battery 11.1V 6600mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHughes 3500065-001 — 11.1V Li-ion Replacement Battery (3500065-001)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is an 11.1V, 6600mAh Li-ion replacement battery for the Hughes satellite phone, OEM part number 3500065-001 (also cross-referenced as 3003702-0001). It fits the Hughes portable satellite communication terminal used in maritime, aviation, and wilderness operations where cellular networks are unavailable. Capacity is 73.26Wh.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eHughes satellite terminal compatibility:\u003c\/strong\u003e\n    The 3500065-001 and 3003702-0001 part numbers reference the same physical pack — same voltage rail, same connector pinout, same BMS communication protocol. Both OEM references draw from the same battery specification, so either number confirms fitment.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this pack through repeated satellite acquisition sequences. The BMS handled the sharp current spike at antenna deployment and radio lock-on without tripping, and cell balancing held across all three cells through the discharge curve.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eCold-field pre-deployment tip:\u003c\/strong\u003e\n    In sub-zero conditions, carry this battery in an inner jacket pocket until you need it. Li-ion internal resistance rises steeply below 0°C, and the acquisition current spike — antenna deployment plus full transmit power — can trip the BMS on a cold cell before it ever locks onto a satellite.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBMS cutoff during satellite acquisition on the Hughes terminal\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eSatellite acquisition pulls significantly more current than idle standby — the antenna mechanism draws power at the same moment the radio ramps to maximum transmit for initial handshake. On a partially depleted or cold cell, this stacked draw can push instantaneous current past the BMS protection threshold. The BMS reads this as a short-circuit risk and cuts output before the phone completes lock-on. This is not a battery fault — it is the protection circuit doing its job on a cell that cannot deliver the peak cleanly. Warm the battery above 10°C and ensure charge is above 30% before attempting acquisition in demanding conditions.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCharger refusing to accept this pack after extended storage\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLi-ion cells self-discharge during storage — if a Hughes terminal sits unused for several months, the pack voltage can drop below the charger's acceptance threshold, typically around 9V for an 11.1V three-cell pack. The charger sees the low voltage and interprets it as a fault or missing battery, so the charge indicator never activates. Most Li-ion chargers include a recovery or pre-charge mode that trickle-feeds the pack at low current until voltage climbs back into the acceptance window. If the charger has a recovery mode, activate it; otherwise, hold the charge button for 10 seconds or check whether the terminal itself can initiate a trickle charge through its USB input to bring the pack above 9.5V.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43416122556506,"sku":"BWCS-SSP28NB-1","price":87.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43416122589274,"sku":"BWCS-SSP28NB-2","price":102.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43416122622042,"sku":"BWCS-SSP28NB-3","price":113.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-SSP28NB-1.webp?v=1779581287","url":"https:\/\/batteryweb.com\/products\/hughes-replacement-battery-111v-6600mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}