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lernfaehig
24/10/2021
From the product description it was already clear that this panel could never supply 150W. Short circuit current multiplied by open circuit voltage is NOT the correct way to specify the power of a solar panel.
After testing myself on a very clear and cool day by putting two panels in series and measuring with different methods I reached a maximum of 175W. This is for two panels, so 87.5W per panel. I measured while charging batteries with two different MPPT solar charge Controllers and both gave the same result +/- 2 W.
For the price the panels performance is still okay, just don't expect to get the performance indicated.
What I also highly doubt but obviously won't test is the "waterproof" part. I expect the panels themselves to be absolutely water-resistant but can't image the same for the junction box with the output connections. While it is inside the bag on the back of the panels I doubt this is waterproof for more than a few minutes if light drizzle. You better don't put this permanently outside but just set it up temporarily when the sun is out.
I haven't contacted the seller as I don't expect any improvement to be possible but I more or less got what I expected.
iMars SP-B150 150W 19V 太陽光パネル屋外防水上位モノクリスタリン太陽電池バッテリーチャージャー車キャンプ電話用
US$169.99
US$259.99
68
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コメント (9)
lernfaehig
05/02/2022
Q: What is the size of this connector? Does it fit a DC 7909 socket?
尋ねた lernfaehig に 2022-01-03 03:42:07
The seller 5.5x2.1mm
2022-01-04 08:13:39 役に立つ (1)回答 (3)
lernfaehig Kann das Gerät AC ausgeben während es mit Solar lädt? gibt es genauere Specs zu dem Solar Eingang? Gerne auch in englisch
Pyrian
17/05/2021
3
コメント (5)
lernfaehig Couldyou please try charging from a solar panel and let me know if it works for your unit? I really hope mine is faulty.
sandrarosamarin
07/02/2022
0
コメント (1)