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Solar Batteries for Sale: Discounted Lithium Storage and How to Pick One

This page collects the solar batteries for sale at a reduced price right now: LiFePO4 modules for 48V home and cabin systems, 12V and 24V packs for trailers and boats, and expansion batteries for power stations. The discount does not change what the battery is, so the same questions apply as on the main batteries page: voltage, capacity, cycle life and where it will physically sit.

There are 38 batteries in this sale from Pytes, Sungold Power, Bluetti, EG4, BigBattery, Rich Solar and others. Prices start at $730 for a 12V 200Ah Rich Solar pack and run to $7,499 for a 20.48kWh Pytes outdoor cabinet with four V5 modules. Everything ships free to the mainland US.

Pytes V5 5.12kWh 51.2V server rack LiFePO4 battery on sale

How to choose a discounted battery

  • Voltage decides everything else. A 48V inverter needs 51.2V modules like the Pytes V5 5.12kWh Server Rack Battery at $1,550. A trailer with a 12V system needs the Rich Solar 12V 200Ah ALPHA 2 LITE at $730. A sale price on the wrong voltage is not a bargain.
  • Capacity per dollar. Compare kWh, not Ah. The EG4 48V WallMount 16kWh Indoor Self-Heating Battery at $3,400 stores three times the energy of a 5.12kWh module for about twice the price, if your inverter and space can use it.
  • Cycle life and warranty. Sale items here still carry their full ratings: 6,000+ cycles and 10 years on the Pytes V5, 7,000+ cycles on the Sungold SG48100P, 12 years on the HUSKY 2 INV. Longer ratings matter more for daily-cycling solar homes than for occasional backup.
  • Indoor, outdoor or mobile. Server rack modules live indoors. The EG4 All-Weather (IP67) and the Pytes outdoor cabinet (IP55) are built for a wall outside. The HUSKY 2 INV 48V 5.12kWh has an IP65 vibration-resistant case for RVs, boats and golf carts.

Popular picks in this collection

Product Key numbers Best for Price from
Rich Solar 12V 200Ah ALPHA 2 LITE 2,560Wh, 4,000+ cycles, IP55 Trailers, vans, boats on 12V $730
Pytes V5 5.12kWh Server Rack 51.2V, 100Ah, 6,000+ cycles First module in a 48V rack $1,550
Bluetti B500K Expansion Battery 5,120Wh, 4,000+ cycles Bluetti Apex 300, AC300, AC500 owners $1,999
4x Sungold Power SG48100P 4 x 5,120Wh, 7,000+ cycles, 10 yr warranty Building a 20kWh bank in one order $4,320
Rich Solar ALPHA 2 LITE 12V 200Ah deep cycle lithium battery

Sizing tips

  • Work out kWh per day first with the Solar Kit Calculator. Enter appliances and your ZIP code; it returns the battery size, and you can then shop this sale for the closest match rather than the biggest discount.
  • Buy modules in the quantity you will actually install. Four SG48100P units in one order cost $4,320; adding a fifth later is fine, but mixing brands in one rack is not.
  • For motorhome batteries, confirm the coach voltage and the space under the step or in the bay before choosing between a 12V 200Ah and a 24V 100Ah pack. Both store 2,560Wh.
  • Cold climates favor self-heating. The EG4 indoor and all-weather units and the Rich Solar ALPHA 4 have it built in; the LITE versions do not.
  • Boats and marine batteries need a sealed case and vibration tolerance. Look for the IP65 HUSKY 2 INV or the IP55 ALPHA 2 LITE rather than a bare server rack module.

Frequently asked questions

Are sale batteries older stock or a different grade? They are the same products with the same cycle and warranty ratings shown on each listing. The reduced price is the only difference.

Can I use these as rechargeable batteries for a portable power station? Only the expansion batteries made for a specific station, such as the Bluetti B500K. Server rack and 12V packs connect to an inverter or charge controller, not to a power station.

Which sale battery is best for a boat? The HUSKY 2 INV if the boat runs a 48V system, the ALPHA 2 LITE for a 12V house bank. Both have sealed enclosures, IP65 and IP55 respectively.

Every battery here ships free to the mainland US from partner warehouses in a few business days, with 30-day returns. Call us if you want to check a sale battery against your inverter before ordering.

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