Does this calculator support dual mode(have backup battery)?

I'm looking for a "solar only" (no auto-shutoff) calculator, but the description on this one says "2 AA batteries required." -- maybe seller can answer?

what are the dimensions in inches?

I use these for my Compassion Boxes (Samaritans Purse), have them already packed up, but I can assure you they are a just right size maybe approximately 3 x 5". Very solid and solar is why I buy them, so they don't need continual batteries, which these children do not have access to. That is the best I can do for you! I just noticed it says 3" x 5" 2.25 (FX-260 SolarII-SIH) This should answer your question for sure!

Does this have statistical functions?

It has the basic stats functions, such as sample and population average, standard deviation, etc. It's been decades since I studied stats, but the FX-260 SolarII has the basics stats functions, yes.

First I need a calculator that can do fractions. (Into fractions) It says it's a solar powered but product description says batteries?

This item should have the ability to calculate fractions during the SHIFT mode. This item is solar powered and does not need batteries.

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Casio Scientific Calculator fx-260 Solar II (Black)

Casio Scientific Calculator fx-260 Solar II (Black)

Product ID: 727662246

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Details

Brand
Casio
Calculator Type
Color
Black
Power Source
Solar Powered
Screen Size
2.25 Inches

📏Compact 134x71x10mm sleek design

🔋Solar-powered, eco-smart energy

🔢10-digit x 2-line LCD for clear data

Description

🧮 Power your precision with Casio’s solar-smart scientific calculator!

DURABLE HARD SLIDE CASE - Protect your investment with a sleek, hard slide cover that ensures longevity and style wherever you take it.
ECO FRIENDLY SOLAR POWER - Say goodbye to battery anxiety with reliable solar energy that keeps you calculating on the go.
TRUSTED BY PROFESSIONALS - Ranked #9 in Scientific Calculators on Amazon, a proven choice for engineers, students, and managers alike.
DUAL LINE DISPLAY CLARITY - View calculations and results simultaneously on a crisp 10-digit x 2-line LCD, boosting your workflow efficiency.
PRECISION MEETS PORTABILITY - Slim, lightweight design (60g) fits perfectly in your pocket or briefcase—ready for any meeting or fieldwork.

The Casio Scientific Calculator fx-260 Solar II is a compact, solar-powered calculator featuring a 10-digit x 2-line LCD display, weighing just 60g. Designed for professionals and students, it combines portability with reliable performance, protected by a durable hard slide case. Highly rated and a top choice in scientific calculators, it’s engineered to keep up with your demanding calculations anytime, anywhere.

Specifications

ASIN	B071R3H9WB
Amazon Bestseller	#16,369 in Office Products ( See Top 100 in Office Products ) #9 in Scientific Calculators
Brand	Casio
Calculator Type	Engineering/Scientific
Color	Black
Customer Reviews	4.1 out of 5 stars 5,569 Your Review
Display Type	LCD display
Enclosure Material	Plastic
Global Trade Identification Number	00889232600222
Item Dimensions L x W	13.4L x 7.1W cm
Item Weight	9 Grams
Manufacturer	CASIO(カシオ)
Mfr Part Number	FX-260 SOLARII-S-IH
Model Number	FX-260 SOLARII-S-IH
Number of Batteries	2 AA batteries required. (included)
Power Source	Solar Powered
Screen Size	2.25 Inches
UPC	889232600222
Unit Count	1.0 Count

Reviews

晴**き

いつも使っています。使いやすい良い商品です。

使いやすさ、大きさ、キータッチともに申し分なしです。カバーはきっちりとはまります。最初は固かったのですが、使っていくうちによい具合になじんできました。

29.12.2025

N**O

定数計算を簡単にしたいのなら一択です。

土木工事の技術者をしています。水準測量の機械高から前視を引く際の定数計算（K）ができる最後の？電卓なのかもしれません。上記の使い方でしたら一択ですね。ポケットに入れ易いサイズにしたのだと思いますが、いかんせん、キーピッチが狭く押しづらいのが、唯一の欠点です。

16.07.2025

ぽ**ー

強度

かなり軽量(樹脂製)なので割れやすい普通に使える👍️

17.11.2025

う**ん

複雑でなく使いやすい

以前から使用しているキーの配置なので使いやすいです。

16.12.2025

E**N

小型・軽量関数電卓で最強！

小さな関数電卓が欲しくて購入しました。学生時代からカシオ製を使っているので、キー配置の関係でずっとカシオ愛好者です。技術系社員なので、シャツ胸元のポケットに入る為、重宝しています。国内販売されていないので、アマゾンさんから購入出来てうれしいです。

5.10.2025

九**竜

想像よりひと回り小さめ！

本体＆液晶画面が想像よりひと回り小さめでした。ボタンはプラスチック製で押しやすいです。裏面にカバーがセット出来ます。ただカバーが白いので汚れが目立ちやすいです。カバーも黒だったら良かったです。

3.12.2025

A**様

ひくひく計算ができる

昭和後半～平成初期の関数電卓と同じ操作方法で使用できる。定数－－変数の繰返し計算ができる。25--3＝（-22）、8＝（-17）、4=(-21)ができる。※カッコ内は答え表示。わかる人にはわかる…はず。

5.09.2025

し**か

説明書が日本語じゃないです

説明書が日本語じゃないので、関数電卓が初めての人は要注意です。サイズ感、操作は問題無しです

6.09.2025

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