Q1: How long do GRANDTECH batteries last?
Up to 6,000 cycles with recommended 80–90% depth of discharge for maximum lifespan.
Q2: Are GRANDTECH batteries safe?
Yes. They use stable LiFePO₄ chemistry and feature a smart BMS that protects against overcharge, over-discharge, short
circuits,and temperature extremes.
Q3: What temperature range do the batteries support?
They operate reliably between –20°C and 60°C. For charging below 0°C, reduced charging current is advised.
Q4: Are these batteries compatible with most inverters?
Yes. Compatible with about 80% of mainstream inverters and charge controllers.
Q5: Can I expand the battery system later?
Yes. Up to 16 battery units can be connected in parallel for easy capacity expansion.
Q6: What are the common applications for GRANDTECH batteries?
Widely used in off-grid solar, telecom backup, home energy storage, RV/marine power, and data centers.
Q7: Do you offer OEM/ODM services?
Yes, we provide customization options including branding, BMS settings, and packaging.
Q8: What logistics and shipping options are available?
We offer global shipping via air freight, sea freight, and express courier (DHL, FedEx, UPS) with secure packaging.