- Flapen Score
- 47 / 100Ranks 3,599 of 4,191 DIY・工具・ガーデン niches · −10 vs the category median of 5747
- Market size
- ¥41.6M/yr191K searches / yr
- 90-day growth
- -12.1%search demand this quarter
- Competition
- 62%top-5 click share · 1 brands · 3 sellers
Flapen Score
Delta 3 Plus against its category
The dotted line is the DIY・工具・ガーデン average. Past it, Delta 3 Plus is stronger. Inside it, weaker.
Market
The Delta 3 Plus market on Amazon at a glance
Shoppers on Amazon Japan searched for Delta 3 Plus 191K times last year and spent an estimated ¥41.6M. One brand takes every click. Demand peaks in Jul–Nov–Dec. Flapen scores it 47 out of 100, a Fail.
01 · Demand
An estimated 0.2% of those searches ended in a purchase.
Shoppers searched for this 191K times in the last 12 months. That counts every search on Amazon Japan for this niche's terms. An estimated 0.2% of those searches ended in a purchase. Searches in the last 90 days moved -12.1% against the 90 days before. Searches, conversion and average price together put the market at an estimated ¥41.6M a year.
- Searches, last 12 months
- 191K
- Growth, 90 days vs prior 90
- -12.1%
- Conversion, latest week
- 0.2%
- Market size, estimated
- ¥41.6Ma year
- Peak month
- July2.6× the quietest month
- Top search term
- エコフローデルタ349K searches a year
02 · Price
A sale here is worth ¥99093.91.
Listings sell for ¥99093.91 on average, from ¥57054.90 to ¥185837.78. Amazon reports units sold in ranges. This niche sold 1K to 1K a year. The average listing sells 0 to 100 of them. At ¥99093.91 that is ¥0 to ¥9.9M a year per listing.
- Average price
- ¥99093.91above the $15 to $100 sweet spot
- Price range
- ¥57054.90–¥185837.78
- Amazon Japan median price
- ¥1942.07across 14,733 niches
- Units sold a year
- 1K–1K
- Units per listing a year
- 0–100
- Revenue per listing a year
- ¥0–¥9.9M
- Returns
- 0.2%of orders · Amazon Japan median 0.4%
03 · Entry bar
The bar here is ads.
100% of listings pay for placement with sponsored ads. 6% ship with Prime. On an average day, 14.9% of listings are out of stock. The average listing ranks #72 within ポータブル電源・蓄電池. It carries 105 reviews at 4.21 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 100%
- Prime listings
- 6%
- Out of stock, average day
- 14.9%
- Average rank
- #72in ポータブル電源・蓄電池
- Average rating
- 4.21 starsAmazon Japan average 4.15 stars
- Average reviews
- 105per listing
- Listings tracked
- 17
04 · Newcomers
10 of last year's 10 launches cleared the first-year sales bar.
10 products launched here in the last 12 months. 10 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 24 months on average, so a newcomer is not facing entrenched names.
- Launched, last 12 months
- 10
- Successful launches
- 10Amazon's first-year sales bar
- Average brand age
- 24 months
Products
Top Delta 3 Plus products & what they sell for
The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.
Prices and ratings read from Amazon on Jul 31, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
EcoFlow DELTA 3 Plus ポータブル電源 1024Wh 業界最速級の充電速度 ぽーたふる電源 大容量 定格出力1500W
- Price
- ¥67501.39
- Rating
- 4.3/5
- Reviews
- 162
- Age
- 2y ago

EcoFlow DELTA 3 Classic ポータブル電源 大容量 1024Wh 定格出力1500W ぽーたふる電源
- Price
- ¥57849.80
- Rating
- 4.2/5
- Reviews
- 62
- Age
- 7mo ago

EcoFlow DELTA 3 ポータブル電源 1024Wh リン酸鉄リチウムイオン ぽーたぶる電源 大容量 業界最速級の充電速度 56分で100%充電 定格出力1500W 10ミリ秒未満のUPS機能 ポータブルバッテリー 13出力ポート搭載 10年長寿命 キャンプ 防災 車中泊 家庭用 アウトドア用 停電対策に最適 防災グッズ アプリ操作可能
- Price
- ¥57054.90
- Rating
- 4.3/5
- Reviews
- 263
- Age
- 1y ago

EcoFlow ポータブル電源 DELTA 3 Max 2048Wh 大容量 2000W定格出力
- Price
- ¥100364.73
- Rating
- 4.1/5
- Reviews
- 152
- Age
- 11mo ago

EcoFlow ポータブル電源 DELTA 3 Max Plus 2048Wh 大容量 3000W定格出力
- Price
- ¥143502.94
- Rating
- 4.2/5
- Reviews
- 71
- Age
- 11mo ago
Trending
estimated 90-day click momentum
EcoFlow DELTA 3 Plus ポータブル電源+110Wソーラーパネルセット 1024Wh リン酸鉄リチウムイオン 長寿命10年 業界最速級の充電速度 56分で100%充電 高出力AC(定格1500W / サージ3000W) ソーラー入力 10ミリ秒未満のUPS 三重の保護 運転 アプリ対応 ポータブル バッテリー ソーラーチャージャ
- Price
- ¥76985.92
- Rating
- 3.6/5
- Reviews
- 10
- Age
- 1y ago

EcoFlow DELTA 3 Classic ポータブル電源 大容量 1024Wh 定格出力1500W ぽーたふる電源
- Price
- ¥57849.80
- Rating
- 4.2/5
- Reviews
- 62
- Age
- 7mo ago

EcoFlow ポータブル電源 DELTA 3 Max Plus +220W軽量両面ソーラーパネル 2048Wh 大容量 3000W定格出力
- Price
- ¥162005.71
- Rating
- 4.2/5
- Reviews
- 71
- Age
- 11mo ago

ECOFLOW DELTA 3 Classic 1024Wh と160W軽量両面ソーラーパネル 2点セット 定格出力1500W ぽーたふる電源
- Price
- ¥70041.86
- Rating
- 4.2/5
- Reviews
- 62
- Age
- 8mo ago

EcoFlow DELTA 3 Classic ポータブル電源 1024Wh 大容量 ぽーたぶる電源 定格出力1500W リン酸鉄リチウムイオン ポータブルバッテリー 6出力ポート搭載 10年長寿命 アプリ操作可能 停電対策に最適 キャンプ 防災 車中泊 家庭用 アウトドア用 防災グッズ エコフロー ブラック色
- Price
- ¥58125.42
- Rating
- 4.4/5
- Reviews
- 32
- Age
- 8mo ago
Newest
by launch date
EcoFlow DELTA 3 2000 Air ポータブル電源 1 920Wh 大容量 ぽーたぶる電源
- Price
- ¥83909.62
- Rating
- 4.0/5
- Reviews
- 77
- Age
- 5mo ago

EcoFlow DELTA 3 Classic ポータブル電源 大容量 1024Wh 定格出力1500W ぽーたふる電源
- Price
- ¥57849.80
- Rating
- 4.2/5
- Reviews
- 62
- Age
- 7mo ago

EcoFlow DELTA 3 Classic ポータブル電源 1024Wh 大容量 ぽーたぶる電源 定格出力1500W リン酸鉄リチウムイオン ポータブルバッテリー 6出力ポート搭載 10年長寿命 アプリ操作可能 停電対策に最適 キャンプ 防災 車中泊 家庭用 アウトドア用 防災グッズ エコフロー ブラック色
- Price
- ¥58125.42
- Rating
- 4.4/5
- Reviews
- 32
- Age
- 8mo ago

ECOFLOW DELTA 3 Classic 1024Wh と160W軽量両面ソーラーパネル 2点セット 定格出力1500W ぽーたふる電源
- Price
- ¥70041.86
- Rating
- 4.2/5
- Reviews
- 62
- Age
- 8mo ago

EcoFlow DELTA 3 Ultra Plus ポータブル電源 3 072Wh 家庭用蓄電池 大容量 出力3000W
- Price
- ¥185837.78
- Rating
- 4.6/5
- Reviews
- 20
- Age
- 9mo ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 62% of clicks. Leaders hold, but buyers still shop past them.
Brands
1 flat
Sellers
3
Est. top-5 brand share
100%
Top 20: 100%
Est. top-5 click share
62%
Top 20: 100%
Open market
0%
- EF ECOFLOW100%
- Open — no brand owns it (0%)
Demand
Delta 3 Plus search demand
Weekly searches over the year, seasonality beneath. Pick a range.
Peak months: Jul, Nov, Dec · busiest ÷ quietest = 2.6×
Search terms
Top Delta 3 Plus search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- エコフローデルタ349K/yr
- ecoflow delta 3 plus17K/yr
- デルタ321K/yr
- エコフロー デルタ 317K/yr
- ecoflow delta 319K/yr
- エコフローデルタ3プラス13K/yr
- デルタ3プラス15K/yr
- delta 3 plus10K/yr
- delta 37K/yr
- delta3 plus3K/yr
Reviews and returns
What reviews say buyers love and hate about Delta 3 Plus
We read the reviews and the return reasons for every product selling here.
“フル充電に少し時間がかかる。”
Every topic
Every topic buyers talk about, one row each.
Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.
19 topics
Keep looking
Related niches
Niches in the same category that score near this one. Research these next.
FAQ
Common Delta 3 Plus questions
Answered from the same tracked data.
Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data




