Last observed
GROWATT 3686Wh Extra Battery for HELIOS 3600 Portable Power Station price history
$1,098.99Last tracked
3 price observations since September 9, 2026.
No current offer.This is the last price we tracked, not a deal you can buy right now.
Price history
$1,098.99 at Amazon on both days seen, Sep 9 – Sep 10. No price change so far.
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