Jackery Explorer 500: problems, parts and running costs

Checked: 2026-10-18

Summary

The original Explorer 500’s NCM battery is rated at 500 cycles to 80%, and owners most often report units that refuse to charge after months of non-use. There are no consumables, so the only running cost is recharge electricity, plus a 10 W standby draw when idle. It is a good buy only at a significant discount — under $200 — because Jackery sells the newer Explorer 500 v2 direct at $449 with a 6000-cycle LiFePO4 battery.

Common problems and fixes

Will not charge after months of storage — three separate Reddit reports: a unit bought about four years ago would not charge despite recommended resets [10], another Explorer 500 “behaving badly” after minimal use [11], and a third that would not charge after a few months in storage [12]. Prevent it by recharging to at least 80% before storage and topping off every 2-3 months [14]; these reported units are years old, well past the 2-year warranty [6].
Slow drain while idle — standby draw is 10 W, so the battery slowly empties if the unit sits powered on unused [5].
No pass-through charging — maximum output while simultaneously charging and discharging is 200 W, and the unit is not designed for UPS use [5][6].

Parts and consumables

No replaceable parts or consumables reported.

Yearly running cost

There are no consumables, filters or subscriptions — the only running cost is the electricity used to recharge the 518.4 Wh battery. The 10 W standby draw also slowly drains the unit when it sits idle [5]. The source data gives no electricity rate or typical usage pattern, so a typical yearly dollar figure: Not enough data.

When it is a good buy

An owner paid $419 on sale in March 2021 (DIY Solar Forum) [7]. AllGoodBatteries (2026) lists it at $299, or $0.58 per Wh [6]. One third-party retailer lists the unit at $499, a figure that may be outdated [3]. The newer Explorer 500 v2 sells direct from Jackery at $449, within the $399-449 range reported for that model [8].

At under $200 the original makes sense, especially used or open-box in good condition; above $200-250 it is hard to recommend over the v2, which adds LiFePO4 chemistry, 6000 cycles, faster charging and a 5-year warranty [8]. The named alternative is the Jackery Explorer 500 v2 ($449 direct from Jackery): it is the better choice when you are buying new and want the longer battery life.