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C10 vs C20: Why the Same Battery Has Two Capacities

Two suppliers can both quote 100Ah and ship batteries of different size. The C-number decides what you actually get. How to compare quotes fairly, and what to put in the RFQ.

Battery Capacity · C-Rate · Lead-Acid · Buying Guide · Technical GuideAuthor: Xbatt Battery2026.11.05

Your Lead-Acid Battery Is Not Class 8 — Until You Book It That Way

Most sealed VRLA blocks travel as general cargo under Special Provision 238, yet they are booked as Class 8 every day and pay for it. The three tests, the packaging photo that gets containers refused, and the paperwork that has to agree with itself.

Lead-Acid · Dangerous Goods · UN2800 · SP238 · Export ComplianceAuthor: Xbatt Battery2026.11.04

The Container That Never Made the Vessel: Shipping Batteries in 2026

Shipping LiFePO4 batteries changed on 1 January 2026. Two rulebooks were revised the same day, and the paperwork that cleared by sea no longer clears by air.

LiFePO4 · Dangerous Goods · IATA DGR · IMDG · Export ComplianceAuthor: Xbatt Battery2026.10.31

The Quote Said 100Ah. The Site Got 55 — Here Is Where the Rest Went

A 100Ah lithium battery is not 100Ah at your load. Four discounts — discharge rate, temperature, depth of discharge and the low-voltage cutoff — decide your runtime, and none of them is on the label.

LiFePO4 · Battery Sizing · Peukert · Depth of Discharge · InverterAuthor: Xbatt Battery2026.10.31

Your Deep Cycle Lead Acid Battery Is Not Worn Out — It Is Sulfated

A deep cycle lead acid battery for solar rarely dies of old age. It dies of partial state of charge — the charge it never quite finished. What sulfation does, the four ways a site starves its own bank, and the numbers that decide year eight.

Lead-Acid · Deep Cycle · AGM · Lead-Carbon · Solar StorageAuthor: Xbatt Battery2026.10.27

LiFePO4 Storage Battery in Cold Weather: What the 0 °C Charge Cutoff Really Costs You

A LiFePO4 storage battery stops accepting charge at 0 °C, and most datasheets bury that line. Here is what plating does, where the sensor really sits, and the seven clauses to put in a purchase order.

LiFePO4 · Cold Climate · BMS · Energy Storage · Off-Grid SolarAuthor: Xbatt Battery2026.10.27

How to Choose Energy-Storage Lead-Acid Batteries: Avoid Refurbished Units and Inflated Specs

Off-grid solar, UPS backup, home storage and small commercial backup all run on energy-storage lead-acid batteries. The market is full of refurbished units, cycled turnover stock, inflated capacity ratings and long-stored batteries. A case can look brand new and still lose half its capacity within six months. Here is how to select a durable, reliable battery in five steps.

Energy Storage Battery · Lead-Acid Battery · AGM · GEL · Buying Guide · Refurbished BatteryAuthor: Xbatt Battery2026.10.23

How to Properly Maintain Your Batteries? Our Engineers Break Down the Manual, All the Essentials in One Read

Buying GEL / AGM lead-acid energy storage batteries is easy — long-term care is what truly matters. Our engineers laid out the full lead-acid battery maintenance workflow: incoming inspection, storage environment, charging specs, preventing over-discharge, plus a standardized periodic maintenance checklist.

Battery Maintenance · Lead-acid Battery · AGM Battery · GEL Battery · Battery CareAuthor: Xbatt Battery2026.10.04

How to Tell If a Storage Lead-Acid Battery (Gel / AGM) Is Brand New or Refurbished

Refurbished second-life batteries are often polished, washed and re-labeled until the case looks factory-fresh. The case alone tells you nothing — what really gives them away is the terminals, laser code, internal resistance, capacity and traceable sourcing with a contract warranty.

lead-acid · battery · storage · gel · agm · refurbished · new vs usedAuthor: Xbatt Battery2026.09.29

One Bad Jar in a Lead-Acid String: Why We Replace the Whole String

One jar dies in a 48 V lead-acid string — can you swap just that one? This is lead-acid only: the series-current rule, how cell reversal turns a cheap fix into an accident, how resistance mismatch eats your runtime, and the narrow case where a single-jar swap is defensible.

Maintenance · Battery String · Safety · Technical GuideAuthor: Xbatt Battery2026.09.28

Reading the Lead Market in 2026: Why a Boring Metal Is a Buyer's Advantage

Copper, aluminium and tin set records while lead sat in a narrow band near USD 2,000/tonne. That calm is structural - and three openly published signals (operating rates, the spot-futures basis, antimony premiums) tell you when to place the order.

Lead Acid · Commodity Prices · Sourcing · Market TrendsAuthor: Xbatt Battery2026.09.26

EU Battery Regulation 2026: The Documents That Decide Whether Your Container Clears Rotterdam

A 40-foot container of Chinese storage sat at Rotterdam for over ten days in September 2026 - not for shipping or valuation reasons, but because three documents did not reconcile to the batch. Here is the timeline, what officers actually check, and the ten questions to put in writing.

EU Regulation · Compliance · Export · Market Trends · LiFePO4Author: Xbatt Battery2026.09.26

Is Lead-Acid Really Dead in AI Data Centres? Reading the 2026 Backup Power Debate

Half the 2026 headlines say lithium has replaced lead-acid outright. EnerSys said in April 2026 that data centres still specify VRLA. Both are quoting real evidence - they are just not describing the same purchase. Here is the framework that actually picks a chemistry.

Data Center · UPS · Market Trends · LiFePO4 · Lead AcidAuthor: Xbatt Battery2026.09.26

China's Battery Tax Reset: What the Rebate Cut and New Consumption Tax Mean for Importers

Every RFQ we open this month asks the same thing: are Chinese battery prices going up 8%? Here is where that number comes from, why it is wrong, and what the 31 December customs deadline is actually worth on a USD 60,000 order.

Export Policy · Market Trends · LiFePO4 · SourcingAuthor: Xbatt Battery2026.09.26

About the Purchase of XBATT Batteries: MOQ, Lead Time, OEM and Shipping

What to put in an enquiry, how long samples and container orders take, which documents we provide, and how batteries are shipped as dangerous goods.

Buyer's Guide · Sourcing · OEMAuthor: Xbatt Battery2026.09.26

How to Optimize Charging Conditions to Extend Battery Service Life

Most premature battery failures come from charging, not from the battery. Voltage profile, temperature compensation, current limits and equalisation - a practical checklist.

Maintenance · Charging · Technical GuideAuthor: Xbatt Battery2026.09.26

AGM, GEL or LiFePO4: How to Choose a Solar Storage Battery

A practical selection guide comparing AGM, GEL and lithium iron phosphate by duty cycle, lifetime cost, temperature behaviour and sourcing factors.

Buyer's Guide · Energy Storage · SolarAuthor: Xbatt Battery2026.09.23

Why LiFePO4 Is Replacing Lead-Acid in Leisure and Storage Applications

A practical comparison of cycle life, lifetime cost and sourcing considerations for importers evaluating a switch from lead-acid to LiFePO4.

LiFePO4 · Market Trends · Energy StorageAuthor: Xbatt Battery2026.09.10

2020 China International Lead-Acid Battery Summit Held in Nanjing

Innovation, recycling, smart manufacturing and lithium competition dominated the agenda. Here is what matters to battery buyers.

Industry News · Lead-AcidAuthor: Xbatt Battery2020.11.12

Internal Resistance Testing and Maintenance for Lead-Acid Batteries

How to read internal resistance readings, judge real remaining capacity, and build a maintenance routine that catches weak batteries before they cause downtime.

Maintenance · Lead-Acid · Technical GuideAuthor: Xbatt Battery2019.10.06