ALLWEI B200 PRO Expansion Battery Review

Named for PPS2400 power stations, the B200 PRO is an add-on LiFePO4 battery listed from $599 for a 2048Wh unit, with a 4096Wh option at $1,198. The spec block gives 3500 cycles with SOH of 70% or more, pass-through charging, a weight of 18.5KG/40.8 lbs and a 0 to 40 C operating range.

Specifications

Options and pricing

Two options appear on the page: a 2048Wh battery at $599 and a 4096Wh option at $1,198, both in stock when read. The store shows a crossed-out higher price of $1,299.00 with a 'Save $700.00' label beside the $599 price; this is the store's own comparison, not a market price. The page does not describe what the 4096Wh option contains beyond its name.

How it compares

The ALLWEI PPS2400 Portable Power Station is the station this battery is named for and lists from $879. Bundles that pair the station with batteries include the PPS2400 plus 1 B200 PRO bundle at $1,579 for up to 4kWh and the PPS2400 plus 4 B200 PRO bundle at $3,679 for up to 10kWh. A lone B200 PRO here starts at $599.

Shipping, returns and warranty

Shipping: free ground shipping within the contiguous US, not to Alaska, Hawaii, Puerto Rico or the US Virgin Islands. Orders usually ship in 1 to 2 business days and arrive in 3 to 7 business days; the lithium batteries rule out air shipping, so the store uses ground carriers (mostly FedEx), and no signature is required on delivery. It does not ship to P.O. box, APO, FPO or DPO addresses, cannot change an address after ordering, may send a multi-item order in separate packages from different warehouses, and may hold or cancel an order its system flags as risky if the buyer does not answer its verification requests. Returns: an order can be cancelled for free before it ships, and for a full refund within 24 hours of ordering; after shipment the refund policy deducts round-trip shipping and a 2.6% fee for card payments or 3.6% for PayPal, while the shipping policy says a shipped order must be received and then returned, and the warranty page mentions an intercept fee. A 30-day return needs an unused, undamaged product in its original packaging with every accessory, proof of purchase and an RMA number from [email protected]; the buyer pays return shipping unless it is a quality issue, and the refund comes within 14 business days after inspection. A separate 90-day exchange-only policy offers a Class A replacement for the PPS300, PPS600, PPS1200, PPS2400 and B200 Pro. Warranty: this product's family is listed with a 3-year standard warranty from purchase and 3 more years if you register the product; the table labels those extra years 'Paid' while the text describes a registration, so check what it costs before relying on them. The warranty applies to purchases through official channels with proof of purchase; unauthorized modification, bad storage, corrosion, incompatible accessories, force majeure, misuse and an expired period void it, and for repairs that need shipping the policy puts the shipping cost on the customer after the store verifies the product's condition. Payment: cards, PayPal, Apple Pay, Google Pay and Shop Pay, with Affirm or Klarna installments on items over $500.

Before you buy

The store shows a crossed-out regular price and a 'Save' amount on its product pages; these are its own comparison figures, not market prices, and some pages add promo banners (such as 'Black Friday Offer $100' or 'Apply Extra $20.00 Coupon') without saying whether the displayed price already includes them. Some pages state certifications (UL2743, UN38.3 and FCC on the PPS2400 page, ETL UL458 on the 3000W inverter page) and '200+ patents'; those are the store's own statements and we found no certificate numbers or listings. The About page says ALLWEI is a brand of ALLWEI Trading Inc., founded in 2012, with the ALLWEI brand launched in 2015; the allweipower.com domain was registered on 29 August 2024, the terms list an address in Rialto, California, and the contact page names a Hong Kong company (HK Bridna Technology Co., Limited). The pages promise support 24/7, while the policy pages give phone hours of Monday to Friday, 9 AM to 5 PM PST. Trustpilot shows one review for allweipower.com (5 stars, March 2026) on an unclaimed profile, and we found no independent lab test of any ALLWEI product.