Battery Buying Guides

Importers booking a first container or LCL of LiFePO4 cells or packs usually hit the same three questions: is this shipment UN3480 or UN3481, what does Class 9 / P903 actually require, and which documents does the forwarder need before the vessel books? This guide deepens the sea-freight side of our China LiFePO4 export guide

RV, van and marine builders often ask whether a LiFePO4 house bank can take charge straight from the alternator. Short answer: do not hard-wire lithium to the alternator without a current-limited path. This guide covers why, how a DC-DC charger protects the alternator, sizing rules of thumb (examples only), and the BMS charge-control fields to

Buyers RFQing a “48V LiFePO4” pack often get three different answers: a marketing 48V label, a 51.2V nameplate, or a telecom −48V bus. They are not the same thing. This short guide explains what each label means for golf carts, hybrid inverters and telecom plants, so you RFQ the right series the first time. General

If you plan to sell your own brand of LiFePO4 batteries on Amazon, the battery itself is only part of the work. Amazon asks for battery attributes, a safety data sheet and a UN38.3 test summary. Those documents have to match your listing, and many listings are held up because they don’t. This guide walks

Most golf cart lithium swaps that go wrong don’t fail because of the cells. They fail at the interfaces: the motor controller, regenerative braking, the charger and its interlock, the 48V-to-12V reducer, and the tray. This guide explains what to record for each cart platform before you order a pack, so the supplier can match

Boat builders and marine electricians who design around lithium house banks keep running into the same gap: the battery is chosen, but the data the electrical design needs is missing from the supplier’s spec sheet. The biggest gap is the battery’s short-circuit current, which drives fuse selection. This guide covers what changed with the 2025

Ask five suppliers for “a 200 kWh battery cabinet” and you will get five quotes that can’t be compared. One includes the PCS, another doesn’t. One assumes a single cycle a day, another two. One quotes the cabinet only, another includes fire detection, commissioning and spares. A C&I battery storage RFQ works when every supplier

For a residential installer, the battery isn’t finished when it arrives. It is finished when the permit is issued and the inspection is passed. If the battery comes without the right listing, test data or paperwork, the job stalls at the permit desk, not at the warehouse. This guide sets out the documents a home

“Please send the SDS” is one of the first requests in almost every battery RFQ. Forwarders ask for it at booking, warehouses ask for it before they accept the pallets, and installers’ customers ask for it for their site files. Yet batteries are manufactured articles, and the transport rules don’t require an SDS at all.

The battery is charged, the cables are new, and the moment the inverter is connected there is a spark and the battery shuts off. After a reset everything works, until the next time the system is switched on. This is one of the most common support calls with large inverters on LiFePO4 batteries, and it