ph lifepo4 3.2 v battery 14430server rack battery 24vmodiary lithium battery chargerlifepo4 battery 300ah500w solar panel price south africagls powerwallwhat is a lifepo4 battery280ah lifepo4 12vgrowatt spf5000tl compatible LiFePO4 Batteryabb solar inverteramaron 200ah battery priceGrowatt SPF 5000ES