Frequently asked questions
Answers about the company, brands, products, warranty, certifications, dealers and export.
Company
Natraj Energy Limited is an Indian manufacturer of lead-acid and lithium-ion batteries, based in Hathras, Uttar Pradesh. It is the parent company of the APEX, Duracharge, Nextra, APEX IONX and IONX ENERGY brands.
NH509, Opp. Maruti Showroom, Aligarh Road, Near Ruheri, Hathras, Uttar Pradesh 204101, India.
Call +91 63990-66990 or email info@nextrabattery.com. You can also use the contact form on this site.
Brands
Five: APEX, Duracharge and Nextra are lead-acid brands; APEX IONX is residential and solar lithium (LFP) storage; IONX ENERGY is commercial, industrial and utility-scale battery energy storage (BESS).
APEX is a lead-acid battery brand. APEX IONX is a lithium-ion (LFP) battery brand. Both are brands of Natraj Energy Limited.
No. APEX IONX is residential and solar lithium storage (kWh scale, buyer is a homeowner or installer). IONX ENERGY is grid-tied battery energy storage systems (hundreds of kWh to MWh, buyer is a C&I team, EPC or utility).
No. APEX IONX and IONX ENERGY are brands of Natraj Energy Limited, Hathras, Uttar Pradesh, India. They are not affiliated with IONiX Pro Battery Technologies, iON-X, Ionex Energy Storage Systems, or Kymco Ionex.
Products & Warranty
Each model has its own page with a full specification table. If a value is not yet confirmed, it shows [TO BE CONFIRMED]. Confirm final specs with a dealer before purchase.
Warranty terms are stated per model in months, split into full-replacement and pro-rata periods. See the model page or the warranty card for the exact terms.
Where a BIS certification is in progress, the product page states this honestly, including that the product does not currently carry the ISI mark. We do not claim certifications that have not been issued.
Buying & Dealers
Use the dealers page on this site to submit a dealership enquiry. Our sales team will get back to you.
Yes. Use the export page to submit a bulk export enquiry.