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Exploring the Caves At Belitung Island & Dealing With A Dead Lithium Bank in Indonesia

15 September 2025 · 31 min · 15K views · Belitung Island

Sunlight streams through Belitung’s narrow cave passage.

What this video covers

James, sailing his 1965 Alberg 30 sloop Triteia through Belitung Island, Indonesia, wakes to find his lithium house bank dead despite showing 90% charge at bedtime with only a fan and anchor light running overnight — the second lithium battery to fail on the passage.15:18

The failure forces a change from a planned 200-mile overnight push to day hops only, stretching the route to Malaysia.16:14 With his credit card blocked at Indonesian ATMs and no cash to buy a replacement, James borrows 3 million IDR from cruising friends Rick and Chantal aboard Shameless, then hires a driver named Ringo to reach town and purchase a 12-volt, 120 amp-hour flooded lead-acid battery for roughly $120 USD.21:47 He wires it under the chart table, bypassing the failed lithium bank, to power critical nav systems and the anchor light.23:32 Compounding the situation: a non-functional alternator (starter battery charges but not the house bank), a repaired diesel leak of uncertain durability, an exhaust hose leak, a broken fridge, a hard-starting engine, and a visa overstay after Indonesian authorities refused an extension.24:21 Navionics had also wiped Indonesia charts from his account, though copies remained on his iPad.16:34 Earlier that morning, James explored bat-filled granite caves at Belitung on foot, arriving before tourist boats to find the site empty.13:23

Replacing a failed lithium bank mid-passage with a flooded lead-acid battery wired directly to solar is a workable short-term fix when no other option exists.

Watch on YouTube

Boats in this video

Alberg 30Their boat

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