ano mas magandang battery type na gagamitin sa LED flashlight? thank you
depende sa situation kasi each has its pros and cons
for example, i wanted a lantern that could stay idle for 1-2 years and it will be used sparingly, at lowest cost. So I chose a cdrking LED lantern with C-Zn D batteries. Since its unused for a long time and will be used sparingly, lifespan is important and high capacity is not needed. So that rules out almost all rechargeables since even eneloops have a self discharge rate, and li ions have a higher self discharge rate. Plus rechargeables cost more than primary batteries. Primary lithium (not li ion, these are not rechargeable) would have better lifespan but cost more so I live with C-Zn and just replace the batteries every couple of years or so depending sa expiration date.
for EDC use, decent quality AA flashlights are usually cheaper since 18650 li-ion flashlights of the same quality use up more materials (bigger body) and have bigger LED emitters. If I need the extra lumens I go for li-ion, otherwise I use AA.
In a situation where you cannot recharge then it may be cheaper to carry multiple alkaline AA's or buy from the local store than to carry multiple rechargeables or carry a large power source to recharge.
li-ion is flammable. Aside from the higher lumens for the size, I like li ion since you can tell how much power it has left. Some li ion flashlights have indicators just like powerbanks. Thats a big annoyance for SLA batteries, you dont know if they are low batt or full.
Speaking of SLA, price is low but its heavy and bulky.