Pacific Sun Systems Frequently Asked Questions

Frequently Asked Questions

Q: Generally how long will my order take?
A: If you’re in the continental USA we try get your order to you within 10-12 business days, Alaska, Hawaii and Puerto Rico can be longer, and will have additional costs.

Q: Do You Offer Installation?
A: Yes we offer installation by licensed and insured installers, in California only at this time.

Q: Do You Offer DIY Kits Still?
A: Yes we offer complete kits and specialize in battery based systems.

Q: I found a comparable solar product cheaper, can you beat the price?
A: Yes we can beat any competitor on similar products by 3%.

Q: What is the generator’s engine and other specs?
A: The data sheet is usually shown in the product images or linked in the description. If you need specs for a specific generator please email

Q: How many AMPS is the generator?
A: The Formula to determine that is “amps = watts / volts”

Q: How long will it take for newly built generators for delivery?
A: 21 Days for Assembly plus 14 Days to Port of L.A., 21 Days to Port of Houston, 30 Days to Port of NY or MIA (in most cases).

Q: Do you have any generators available today in-stock?
A: Yes, only used units, mostly non-EPA, 200kw and larger.

Q: What is minimum deposit needed to start my order?
A: 50%

Q: Do you have any generators made in USA?
A: Only used models.

Q: I have never ordered equipment this way, is this safe?
A: Paypal is safer than paying cash or COD, they have a dispute medium, and they are buyer-favored. this is the safest way to order anything online!

Q: Do I need EPA Certificate?
A: Please check with your local laws and codes. Normally in the USA you will need an EPA certificate but there are exceptions.

Q: Do you sell Automatic Transfer Switches?
A: Yes, Please email for a quote on an ATS.

Q: Can you deliver to my door?
A: We can refer you to freight forwarder, all generator sales are CIF Port (LA, Houston, NY or MIA, your choice) unless otherwise noted in your invoice.


Q: What is your warranty and claims process?
A: Our warranty for LIFEP04 batteries is 4 years. 6 Year Extended Warranty on the cells is available for a 10% surcharge on total price.

Q: How long will it take for delivery?
A: For 12V100AH and 200AH 15 Days, For all other/larger batteries 15-20 Business Days.

Q: Why does my FedEx Tracking show a random city as the origin?
A:That’s how FedEx international tracking works, whatever airport or customs city/customs facility they come to first with that particular shipment, will sho as the “origin city” on their tracking system. It can be a number of cities (ex: Pittsburgh, San Francisco, Los Angeles etc), and it’s completely normal as-per Fedex.

Q: Do you have any lithium batteries available today in-stock?
A: Due to the variables with each application (BMS Settings, Dimensions etc) currently all batteries ship from our manufacturing warehouse. We do have some 100AH and 200AH drop in replacements from time to time in stock in NV or CA, and they will be posted on our home page when available.

Q: Do you have 24V, 36V, 48V or 96V batteries
A: Yes, we can design and build any lithium battery with same standard lead time.

Q: Do you have any lithium batteries made in USA?
A: As of today, there are no LIFEP04 Lithium mines or manufacturers in the USA, buyer beware if any seller claims that. All LIFEP04 is imported.

Q: How long have you been in business?
A: We have been selling Lithium Batteries, first for only solar applications as “Pacific Sun Systems” (Parent Company), since 2010.

Q: How can I be sure I am getting a quality product with quality components?
A: Four Reasons: 1) We have the most sales experience with lithium batteries of any other source, simply put 2010 was the start of this technology. 2) Our manufacturing partners are carefully selected (Quality, Service, Warranty Coverage) and they are the largest battery manufacturers in the world. 3) Through our experience we eliminated the elementary issues the often cause problems in a transaction; such as but not limited to product quality. We have already solved many of the common issues that other dealers are just learning about today. 4) We accept Paypal which is the safest way to buy online, ensuring delivery and quality.

Q: Will the BMS allow charging current to flow through it if the temperature falls below the Operating Temperature Range?
A: The 12V 100AH BMS monitors temp (and will indicate high temp) but the BMS itself does not control temp, or stop charge. The temperature at which the battery packs work depends on the chemical LIFEPO4 itself (all LIFEP04) BMS Functions: 1. Over charge protection 2. Over discharge protection 3. Over Current protection 4. Short circuit protection 5. Over Heat Indicator (Indicator Only) 6. Balance Cells Function. You might want to consider a battery blanket, some type of heater if you will have an uncontrolled charge source below the recommended operating temperature range.



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