Calculator, SPLAKS Desktop Calculators Sola and AA Battery D
✅ PROS
- Dual power source (solar + AA battery) means it keeps working even in dim office lighting or when the solar panel is covered
- Large 12-digit display with big, angled digits that are easy to read from across a desk
- Solid, weighted build with responsive keys that don't wobble or stick during rapid entry
❌ CONS
- The key layout takes getting used to — the equals key is smaller than competitors' and sits in an unusual spot
- No backlit display, so you'll need decent ambient light or the battery to keep the screen visible
- The plastic body shows fingerprints and smudges quickly, especially on the darker color options
The Verdict
The SPLAKS Desktop Calculator: A Reliable Workhorse or Just Another Desk Ornament?
Let’s be blunt. Most desktop calculators are an afterthought — something you grab because the one you had finally died. The SPLAKS Desktop Calculator with dual solar and AA battery power tries to be more than that. After digging through 215 ratings and the specs, here’s the real story.
What you actually get: This is a standard 12-digit desktop calculator with a solar panel across the top and an AA battery compartment on the bottom. It measures roughly 7.5 inches wide and 5.5 inches deep — compact enough for a cluttered desk but substantial enough to not slide around when you’re punching numbers. The display tilts up at about a 30-degree angle, which helps with visibility if you’re tall or have your calculator positioned lower than eye level.
Build quality and daily use: The unit has a weighted base that keeps it planted during aggressive keying. The keys themselves are responsive with a satisfying click — no membrane mush here. I’ve seen reviewers consistently praise the tactile feedback, with one noting, “The keys have a nice firm press, not too stiff, not too soft.” The display is genuinely large for this price point, with digits that are crisp and easy to read from a normal sitting distance.
The dual power setup is the star feature. The solar panel handles most daytime use, and the AA battery kicks in automatically when light drops — during a storm, in a dim corner office, or if you’re working late. That’s a genuine practical advantage over single-source calculators. One reviewer summed it up well: “I’ve had calculators die on me mid-inventory before. This one hasn’t skipped a beat.”
Where it falls short: Let’s talk about the key layout. The equals button is smaller than you’d expect and positioned oddly — near the bottom right but not where your thumb naturally lands. Long-time calculator users will fumble for the first few days. It’s not a dealbreaker, but it’s an unnecessary hurdle for a device whose whole purpose is efficiency.
The lack of a backlit display means you’re dependent on ambient light or the battery for visibility. In practice, this is fine in most offices, but if you’re using it in a dimly lit room, you’ll find yourself squinting. And the plastic casing is a fingerprint magnet — the glossy finish picks up smudges within minutes of use. Minor issues, but worth knowing.
Who should buy this: This calculator shines for anyone doing regular arithmetic — bookkeepers, inventory managers, students, or small business owners who need something dependable without spending $40+ on a premium brand. It’s also a solid choice for a home office where you might not have perfect lighting conditions, thanks to the dual power.
Skip it if: You’re a heavy financial professional who needs tax functions, currency conversion, or programmable memory. This is a basic four-function calculator with percent and square root — nothing more. If you need advanced functions, look elsewhere. Also, if you’re left-handed, the layout might annoy you more than most.
Frequently asked questions:
Q: Does it come with the AA battery included? A: No, you’ll need to supply your own AA battery. The solar panel works fine in typical office lighting, but for nighttime use, grab a pack of batteries.
Q: Can the solar panel charge the AA battery? A: No. The solar panel powers the calculator directly; it doesn’t recharge the battery. The battery is a backup power source, not a rechargeable cell.
Q: How does it handle rapid, repeated key presses? A: The keys register consistently even with fast entry, which is good for data entry tasks. No ghosting or missed keystrokes reported in the ratings.
The Verdict: 4.2/5
Buy it if you need a dependable, dual-power desktop calculator that won’t leave you stranded when the lights go down. The build quality is solid, the display is readable, and the dual power setup is genuinely useful.
Skip it if you need advanced functions or you’re particular about key layouts — the unconventional equals key placement will drive you nuts.
For the price, this is a solid everyday calculator that does exactly what it promises. It’s not flashy, but it’s honest work. That’s worth something.
Where to Buy
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Last updated: 2026-08-06. Ratings and prices current as of review date. Verify on Amazon before purchasing.