About Company

What brand is your BMS?

Heltec BMS. We specialize in Battery Management System for many years.

Where is your company located?

Heltec Energy is located in Chengdu, Sichuan, China. Welcome to visit our company!

About Product

Is there warranty of your product?

Yes. The warranty is good for one year after the date of the purchase of the product.

Do you have any certificates?

Yes. Most of our products have CE/FCC/WEEE.

What is passive balancing?

Passive equalization generally discharges the battery with higher voltage by means of resistance discharge, and releases energy in the form of heat to gain more charging time for other batteries.

Do you have BMS with active balancer?

Yes. We have this BMS supports mobile App control and with active balancer built-in. You can adjust data through mobile App in real time.

Can your BMS communicate with inverter?

Yes. We can integrate the protocol for you if you can share the protocol.

What is the advantage of Relay BMS?

Relay controls the discharge and charge current. It supports 500A continuous current output. It is not easy to be heated and damaged. If damaged, the main control will not be affected. You only need to replace the relay to reduce maintenance costs.

About Shipping

What’s your shipping terms?

Normally we choose FedEx, DHL and UPS express to ship goods from China considering DAP. In some special cases, we can do DDP if the weight meets the requirement of logistic company.

Do you have warehouses in US/EU?

Yes. We can ship goods from our warehouse in Poland to EU countries/US warehouse to US/Brazil warehouse to Brazil/Russia warehouse to Russia.

How long time it takes to ship to my address after payment made?

If ship from China, we will arrange shipment within 2-3 working days once payment received. Normally it takes around 5-7 working days to receive after shipped.

About Orders

Is there a MOQ request for customize?

Yes. MOQ is 500pcs per sku and the size of bms may change.

Do you offer samples?

Yes. But please understand that we don’t provide free samples.

Can I get a discount?

Yes. We can offer a discount for purchase in bulk.