Battery knowledge, in plain language

Selection guides, compliance notes and private label playbooks written by the TIANQIU trade team.

AAA Battery Wholesale: MOQ, Factory Prices & How to BuyFeaturedSep 9, 2026AAA Battery Wholesale: MOQ, Factory Prices & How to BuyAAA battery wholesale from a China factory — MOQ 50 cartons (≈ US$2,000), factory prices per chemistry tier, private label options, lead times and the export documents every wholesale buyer needs.Read article LR03 vs R03P vs R03: The AAA Buying Guide for BuyersSep 9, 2026LR03 vs R03P vs R03: The AAA Buying Guide for BuyersLR03 alkaline, R03P heavy duty and R03 carbon zinc — capacity, price tier and the stocking rule that tells you which AAA battery to buy for remotes, retail or value packs.Read article Private Label Battery MOQ: What 50 Cartons Really MeansSep 9, 2026Private Label Battery MOQ: What 50 Cartons Really MeansThe real MOQ behind private label batteries — 50 cartons for standard retail packs, 100 cartons for custom packaging; how card counts and artwork affect the minimum order, plus samples and lead times.Read article A10 Battery Equivalents: PR70 / 10A Cross-Reference (Hearing Aid Cells)Sep 1, 2026A10 Battery Equivalents: PR70 / 10A Cross-Reference (Hearing Aid Cells)A10 battery equivalents explained: PR70, 10A, P10 and size 10. What the cross-references mean, which devices they belong to, and the one mismatch to avoid.Read article AA vs AAA Battery: Complete Size, Voltage & Usage ComparisonSep 1, 2026AA vs AAA Battery: Complete Size, Voltage & Usage ComparisonAA and AAA batteries look similar but differ in size, capacity and the devices they run. The complete comparison table — and the picking rule that saves you a wasted trip.Read article Alkaline vs Zinc Carbon vs Lithium Batteries: Which Chemistry WhenSep 1, 2026Alkaline vs Zinc Carbon vs Lithium Batteries: Which Chemistry WhenThree chemistries, three jobs: carbon zinc for light loads, alkaline for real work, lithium for extreme conditions. The shelf strategy for retailers — and the honest differences.Read article Can You Bring AA Batteries on a Plane? TSA RulesSep 1, 2026Can You Bring AA Batteries on a Plane? TSA RulesBatteries travel with riders of rules: carry-on allowed for most consumer cells, restrictions for lithium. The plain-language guide to flying with AA, CR2032 and everything in between.Read article How Many Volts Is an AA Battery? (And the Voltage of Every Battery You Own)Sep 1, 2026How Many Volts Is an AA Battery? (And the Voltage of Every Battery You Own)AA = 1.5V, AAA = 1.5V, CR2032 = 3V — but the voltage chart gets interesting with rechargeables. Every common battery voltage in one quick reference.Read article CR2032 vs CR2025 vs CR2016: Which Coin Cell Do You Actually Need?Sep 1, 2026CR2032 vs CR2025 vs CR2016: Which Coin Cell Do You Actually Need?Same 20 mm diameter, three thicknesses — and they are NOT interchangeable. The comparison table, the physical rule, and how to read the stamped number on your device.Read article Hearing Aid Battery Size Chart & How Long Each Size LastsSep 1, 2026Hearing Aid Battery Size Chart & How Long Each Size LastsThe complete hearing aid battery size chart: A10, A13, A312, A675 dimensions, crossover names (PR70, PR48, PR41, PR44) and realistic battery life per size.Read article How Long Do AA, AAA and D Batteries Last? (Table)Sep 1, 2026How Long Do AA, AAA and D Batteries Last? (Table)Two different answers that confuse most people: how long a battery stays fresh in the pack, and how long it actually runs in the device. A practical guide for both.Read article How to Dispose of Batteries Safely (Recycling & Take-Back)Sep 1, 2026How to Dispose of Batteries Safely (Recycling & Take-Back)Never throw batteries in household trash: EPR obligations, take-back points, and the waste-management duties the EU battery regulation puts on batteries and the brands that sell them.Read article How to Replace a Car Key Fob Battery: DIY Guide (By Brand & Model)Sep 1, 2026How to Replace a Car Key Fob Battery: DIY Guide (By Brand & Model)The four-step key fob battery replacement every driver can do: open the shell, match the cell, mind the polarity, test. Which battery your Nissan, Toyota, Honda or Ford takes — in one chart.Read article How to Replace a Watch Battery: Step-by-Step (Tools, Models, Tips)Sep 1, 2026How to Replace a Watch Battery: Step-by-Step (Tools, Models, Tips)The complete watch battery replacement walkthrough: tools, how to match the right button cell, and the four steps that protect the movement — with the common model chart.Read article How to Test a Battery with a Multimeter (AA, AAA)Sep 1, 2026How to Test a Battery with a Multimeter (AA, AAA)A dead battery, a multimeter and 10 seconds: the correct voltage test, the load problem no one mentions, and the quick check that separates tired cells from dead ones.Read article EU Battery Regulation 2023/1542: what it changes for battery importersAug 25, 2026EU Battery Regulation 2023/1542: what it changes for battery importersThe EU's new battery regulation applies from February 2024. Substance limits, labelling, replaceability and documentation — the four things importers of button and cylindrical cells should already be checking.Read article Shipping lithium button cells: UN38.3, air and sea in plain termsJul 30, 2026Shipping lithium button cells: UN38.3, air and sea in plain termsLithium batteries travel under strict transport rules. What UN38.3 and the maritime/air certificates mean for buyers, and how a supplier with the paperwork reduces your lead time.Read article Starting a private label battery line from 50 cartonsJun 18, 2026Starting a private label battery line from 50 cartonsThe practical path from "send us your logo" to a shelf-ready private label battery: artwork, samples, production and delivery — and why a 50-carton MOQ is your cheapest test run.Read article Alkaline vs carbon zinc batteries: which chemistry fits your shelfMay 20, 2026Alkaline vs carbon zinc batteries: which chemistry fits your shelfTwo zinc-based chemistries, two price points. Where carbon zinc belongs, where alkaline earns its keep, and how a retailer can carry both without stacking two supply chains.Read article What Does 0 Hg Mean on a Battery? (0% Mercury)Apr 2, 2026What Does 0 Hg Mean on a Battery? (0% Mercury)Mercury has been phased out of button cells in major markets. What Hg0 means for retailers, importers and compliance teams — and what makes a factory genuinely mercury-free.Read article How to choose the right button cell: LR, CR and zinc-air explainedMar 12, 2026How to choose the right button cell: LR, CR and zinc-air explainedAG/LR (1.5V alkaline), CR (3V lithium) and A-series zinc-air cells look similar but power very different devices. A practical selection guide for buyers and merchandisers.Read article
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