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This Eco-Worthy 12V 20Ah battery double-pack is down as low as $76 with the AliExpress promo code "DEALUS10". (Depending on your account status, this may be a few bucks less or a few more.) It's a strong deal as you'd pay $120 for the same pack today at Amazon. Shipping is free from a local US warehouse and the coupon expires on July 31.
Lithium iron phosphate batteries like these are rated for far more charge cycles than a standard lead-acid battery, which typically lasts a few hundred cycles before wearing out. The built-in battery management system guards against overcharging, over-discharging, and short circuits, functions that lead-acid batteries lack entirely. Buy Now at AliExpress
Features
- Two 12V 20Ah lithium iron phosphate (LiFePO4) batteries included
- Built-in battery management system (BMS) for protection
- Rated for 3,000+ deep charge cycles
- 256Wh nominal capacity per battery
- Weighs 5.7 lb. per battery
- Measures 7.2" x 3.0" x 6.7"
