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BLUETTI B500K Expansion Battery for Apex 300 Portable Power Station, 5120Wh
✅ In stock
D
Grade
Analysis Confidence
93%
Price verified Sep 30, 2026 3:39 AM · Prices & availability subject to change
Is This a Good Price on Amazon?
😐 Weak Deal- 😐Verdict: Weak Deal. Marginal discount. Prices may drop further soon.
- 💰At 9% off its standard going rate, this offer delivers clear value for the money.
- 🏷️The listed retail price is trimmed by 11% at checkout.
- 📉This is the most affordable price seen in roughly three months — a solid near-term opportunity.
- ➡️Pricing has held fairly steady, with no strong push in either direction.
How We Scored This Deal
Price Competitiveness
6.49/28
Recent Value
0/22
Market Standing
17.84/20
Deal Strength
7/20
Momentum
4/10
📝 Product Overview
🏪 Sold by
Amazon.com
🚚 Shipping
Free Shipping
Product Details
✓[Scalable Capacity Expansion] - 5120Wh per pack with 4,000+ cycles to 80% capacity. Expand up to 6 B500K per Apex 300. 3 Apex 300 with 18 B500Ks achieve an incredible 100kWh capacity.
✓[Widely Compatible] - B500K works with past and future BLUETTI portable power station including AC200L AC200MAX AC300 AC500 and Apex 300. This listing includes the CA90 cable (compatible only with Apex 300).
✓[Next-Gen Design Architecture 2.0] - The B500K expansion battery bulit with a cable-free internal layout, wireless internal structure lowers failure risks and saves space, resulting in a more compact, easy-to-move product.
✓[Usage Ecosystem] - Beyond capacity expansion, the B500K works with BLUETTI accessories for versatile charging and discharging: SolarX 4K (4000W), Alternator Charger (560-1000W), Hub D1 (700W DC), and future accessories.
✓[What You Get] - BLUETTI B500K expansion battery, CA90 battery connection cable for the BLUETTI Apex 300 B300K, and user manual.
⚙️ Specifications
Brand
BLUETTI
Voltage
120 volts
Model Name
B500K
Item Weight
99.2 pounds
Special Feature
5120Wh Ultra-Large Capacity & Up to 100kWh Expandability, Next-Gen Architecture 2.0 & Enhanced Durability, Robust BMS Protection, Versatile Integration with Bluetti Accessory Ecosystem, Wide Compatibility with BLUETTI Ecosystem
ASIN
B0FS759MVH
Item model number
BLUETTI B500K+CA90 Cable
Customer Reviews
4.4 4.4 out of 5 stars (164) var dpAcrHasRegisteredArcLinkClickAction; P.when('A', 'ready').execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( 'acrLink-click-metrics', 'click', { "allowLinkDefault": true }, function (event) { if (window.ue) { ue.count("acrLinkClickCount", (ue.count("acrLinkClickCount") || 0) + 1); } } ); } }); P.when('A', 'cf').execute(function(A) { A.declarative('acrStarsLink-click-metrics', 'click', { "allowLinkDefault" : true }, function(event){ if(window.ue) { ue.count("acrStarsLinkWithPopoverClickCount", (ue.count("acrStarsLinkWithPopoverClickCount") || 0) + 1); } }); }); 4.4 out of 5 stars
Best Sellers Rank
#227,790 in Toys & Games (See Top 100 in Toys & Games) #1,340 in Hobby Remote & App Controlled Vehicle Batteries
Date First Available
September 23, 2025
Manufacturer
BLUETTI
