Tab not used for 3 months, battery won't turn on

Question

Acer Iconia Tab 8 A1-860

An 8 inch tablet with a full HD display, an Android operating system, and an Intel Atom processor. This guide is written for Model A 5001.

crwdns2934591:013crwdne2934591:0 crwdns2934593:0crwdne2934593:0

Kobe Sergio @kobesergio46177

crwdns2934065:0crwdne2934065:0: 1

crwdns2931729:0crwdne2931729:0: Kho 7, 2017

crwdns2933897:0crwdne2933897:0

Tab not used for 3 months, battery won't turn on

I tried to disconnect and connect the power socket and plugged it to a charger and waited 15 mins then suddenly a charging logo appeared for 15 seconds then it disappeared. as soon as i powered my tablet it only shows the acer logo. i tried holding the volume up and power button, it only takes me to android system recovery. what can i do to fix this

crwdns2934089:0crwdne2934089:0 crwdns2934093:0crwdne2934093:0

crwdns2934109:0crwdne2934109:0

crwdns2853045:0crwdne2853045:0 crwdns2853046:0crwdne2853046:0

crwdns2889612:0crwdne2889612:0 0

crwdns2934285:0crwdne2934285:0